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Instructions for Authors

doi: 10.1097/01.AOG.0000441359.59321.6d
Departments: Instructions for Authors
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Following are guidelines for the preparation and submission of manuscripts to Obstetrics & Gynecology. Submit all manuscripts through the Internet at http://ong.editorialmanager.com (Editorial Manager). Include the following items with the submitted manuscript:

  • • Author Agreement form(s)
  • • Completed checklist(s) for the submission process outlined herein
  • • Completed checklist for appropriate reporting guideline, if applicable (see I.L)
    • ○ CONSORT
    • ○ STROBE
    • ○ PRISMA
    • ○ STARD
    • ○ MOOSE
  • • Disclosure of potential conflicts of interest (see I.E)
  • • Cover letter to the editors addressing the following points:
    • ○ The authors’ intent to submit solely to Obstetrics & Gynecology
    • ○ Verification that the manuscript is not under consideration elsewhere, and indication from the authors that it will not be submitted elsewhere until a final decision is made by the editors of Obstetrics & Gynecology
    • ○ The declaration of transparency from the lead author (see I.A)
    • ○ Clinical trial registration, if applicable (see I.B)
    • ○ Institutional review board (IRB) approval or exemption (see I.F)
    • ○ Informed consent (see I.H)
    • ○ Any explanations related to reporting guidelines (see I.L)
    • ○ Potential cover art (see VII)
  • • Microsoft Word or Open Document file of the manuscript, with pages and lines numbered consecutively and containing the following:
    • ○ Title Page
    • ○ Précis
    • ○ Abstract
    • ○ Manuscript body
    • ○ References
    • ○ Table(s)
    • ○ Figure Legend(s)
  • • Any figure(s)
  • • Any supplemental digital content (see VI.A–C)

Further information about each of these components can be found in Sections II through VII.

Authors may also send signed forms and required checklists by e-mail to . All forms are available online (http://ong.editorialmanager.com) or in the back of each month’s journal. Authors must use the most recent version of the author agreement form. The most current version is always the one found online.

Once a manuscript is submitted through Editorial Manager, the corresponding author will be notified by e-mail.

During consideration of a manuscript, it may become necessary to examine original source documents such as signed consent forms, IRB minutes, research data books or logs, and statistical calculations. If the Editor requests any such material, and the author is unable or unwilling to produce it, the manuscript will be withdrawn.

A Guide to Writing for Obstetrics & Gynecology, a complementary resource to the Instructions for Authors, is available at http://ong.editorialmanager.com (or contact the Editorial Office to obtain a hard copy). First and second authors of articles published in Obstetrics& Gynecology are eligible to receive 10 Category 1 continuing medical education credits per article for one article per year.*

Authors may now enter their ORCID identifier in Editorial Manager. Please go to the “Update My Information” page to enter an existing identifier or to register with ORCID (http://orcid.org/).

Authors who are interested in signing up as peer reviewers should contact the editorial office.

Contact information for the editorial office is:

The Editor

Obstetrics & Gynecology

409 12th Street, SW

Washington, DC 20024-2188

Phone: 202-314-2317

Fax: 202-479-0830

E-mail:

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I. POLICIES

The following policies apply to all manuscripts submitted to Obstetrics & Gynecology.

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A. Authorship

The role of authorship in Obstetrics & Gynecology is reserved for those individuals who meet the criteria recommended by the International Committee of Medical Journal Editors (ICMJE; http://www.icmje.org):1

  • • Substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of data for the work; and
  • • Drafting the work or revising it critically for important intellectual content; and
  • • Final approval of the version to be published; and
  • • Agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Author Declaration of Transparency. As proposed in a 2013 editorial in BMJ,2Obstetrics & Gynecology requires that all evidence-based research submissions be accompanied by a transparency declaration statement from the manuscript’s lead author. By signing this statement, the lead author declares that the manuscript’s contents are not misleading.

The following statement should appear in the submission’s cover letter, or be uploaded in Editorial Manager as a separate attachment:

The lead author* affirms that this manuscript is an honest, accurate, and transparent account of the study being reported; that no important aspects of the study have been omitted; and that any discrepancies from the study as planned (and, if relevant, registered) have been explained.

Signed by: _________________

*The manuscript’s guarantor.

Number of Authors. The appropriate number of authors depends on the nature of the study. The maximum number of authors usually permitted is four, with the exception of original research articles. “Co-first authors” and notes in the manuscript describing the degree of author contribution are not permitted.

Ghost Authorship. A ghost author is someone who participates in one or more of the following– research, data analysis, or writing of a manuscript–but is not named or disclosed in the author byline or acknowledgments.3 Ghost authorship is prohibited by the journal. Authors must disclose whether any manuscript preparation assistance was received—including but not limited to topic development, data collection, analysis, writing, or editorial assistance—and, if so, who provided and who paid for the assistance (see IV.A).

Group Authorship. If authorship is attributed to a group or collective, there must be at least one individual name included. List the names of the individuals in the group or collective in an appendix, which will be published online. A reference to the online appendix will appear in the print journal.

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B. Clinical Trial Registration

Obstetrics & Gynecology complies with the ICMJE requirement that clinical trials be registered in a public trials registry at or before the time of first patient enrollment in order to be considered for publication.4,5,6 Registries approved by the ICMJE are ClinicalTrials.gov or any registry that is a primary register of the WHO International Clinical Trials Registry Platform (ICTRP; http://http://www.who.int/ictrp/network/primary/en/index.html).

Provide the trial registry name and URL and the registration number at the end of the abstract.

In the cover letter, the corresponding author must attest to registering the trial and that the protocol they are reporting to Obstetrics & Gynecology is identical to the posted trial and if, not, precisely where and why it varies. Any changes in protocol should also be discussed in the manuscript itself as well as documented on the trials registry web site.

If you cannot provide this information and wish to be considered for an exception, please contact the editor directly via e-mail prior to submitting your manuscript ().

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C. Compliance with NIH and Other Research Funding Agency Accessibility Requirements

A number of research funding agencies now require or request authors to submit the postprint (the article after peer review and acceptance but not the final published article) to a repository that is accessible online by all without charge. As a service to our authors, the journal’s publisher, Lippincott Williams & Wilkins, will identify to the National Library of Medicine articles that require deposit and will transmit the postprint of an article based on research funded in whole or in part by the National Institutes of Health, Wellcome Trust, Howard Hughes Medical Institute, or other funding agencies to PubMed Central. The author agreement form provides the mechanism.

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D. Database Validation

In order for an administrative database study to be considered for publication in Obstetrics & Gynecology, the database used must be shown to be reliable and validated. In your cover letter, please tell us who entered the data and how the accuracy of the database was validated. This same information should be included in the Materials and Methods section of the manuscript.

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E. Disclosure of Potential Conflicts of Interests

On submission, the author(s) must identify potential conflicts of interest of a financial or other nature. Authors should err on the side of full disclosure and provide as much information as possible, regardless of dollar amount.

  • • Identify all sources of financial support of the study, including provision of supplies or services from a commercial organization on the title page.
  • • All sponsor names must be provided. Include an explanation of any role the sponsor(s) had in the study design; collection, analysis, and interpretion of data; writing of the report; the decision to submit the report for publication; or a statement that the sponsor(s) had no such involvement.
  • • Disclose any financial involvement that could represent potential conflicts of interest by checking the appropriate box on the author agreement form and listing the potential conflicts in an attachment to the author agreement form.
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F. Institutional and Ethical Approval

All studies should follow the principles set forth in the Helsinki Declaration of 1975, as revised in 2013, and manuscripts should be approved by the necessary authority before submission. Applicable original research studies should be reviewed by an institutional review board (IRB).7 This review should be documented in your cover letter as well in the Materials and Methods section, with an explanation if the study was considered exempt. If your research is based on a publicly available data set approved by your IRB for exemption, please provide documentation of this in your cover letter by submitting the URL of the IRB web site outlining the exempt data sets or a letter from a representative of the IRB. In addition, insert a sentence in the Materials and Methods section stating that the study was approved or exempt from approval. In all cases, the complete name of the IRB should be provided in the manuscript.

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G. Language-Editing Services for Authors

Articles submitted to the journal must be written with a basic level of English competency. If you need assistance in this area, listed below are a few companies who provide language and copyediting services.

Note that appearance in the list of vendors does not represent endorsement by the publisher or journal. Authors are encouraged to investigate each service on their own, as well as seek out additional vendors offering similar services.

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H. Permissions and Releases

Tables and figures should be original. The use of borrowed material (eg, lengthy direct quotations, tables, or figures) is discouraged, but should it be considered essential, written permission of the copyright holder must be obtained by the authors and credit to the original source indicated. Permission is also required for material that has been adapted or modified from another source. Both print and electronic rights must be obtained. A template for use in obtaining permission can be found at http://ong.editorialmanager.com. Authors must include this documentation with the submitted manuscript (eg, by uploading scanned copies of forms or by e-mailing the forms to the editorial office). In addition, you must list any material included in your submission that is not original or that you are not able to transfer copyright for in the space provided under I.B on the first page of the author agreement form.

A signed consent form must be obtained from each patient described in a case report and each patient who is identifiable in a photograph or video. A sample form is available online at http://edmgr.ovid.com/ong/accounts/release.pdf. It is preferable to give the patient the opportunity to read the manuscript. Please state in the cover letter with your submitted manuscript that you have obtained a signed consent form and that this form will be filed with your records. Unless the editorial office requests that you do so, please do not submit the signed form to the journal. If you are not able to obtain a signature on this form from the patient, guardian, or next-of-kin, please explain why this is not possible.

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I. Plagiarism

Plagiarism is the act of presenting “as new or original an idea or product derived from an existing source.”8 The editorial staff now checks all potentially acceptable manuscripts for plagiarism by using the CrossCheck/iThenticate software, which compares the manuscript to material uploaded to CrossCheck’s own database, articles published on PubMed, and text appearing on the Internet. Manuscripts that are to be rejected usually are not checked for plagiarism unless a reviewer has raised concerns about the manuscript.

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J. Presentation at Meetings

The journal will consider a complete report that follows presentation at a scientific meeting (eg, abstract or poster). Researchers who present their work at such a meeting may discuss their presentations with the media. However, offering more detail about the study than was presented in the abstract or poster (eg, providing additional data or copies of tables and figures) is prohibited.9 Indicate such presentations on the title page by providing the full name of the meeting, as well as the city, state, and dates. If you intend to present data or an abstract of your study at a future meeting, please indicate this information in the cover letter. If at any point in the review, revision, or publication process you learn that your abstract or data will be presented at a future meeting, please inform the editorial office as soon as possible so that publication of the manuscript can be delayed if necessary.

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K. Previous Submission

Original submissions will be considered for publication with the understanding that they are contributed solely to Obstetrics & Gynecology. If a version of the manuscript has previously been submitted for publication to Obstetrics & Gynecology, include comments from the peer reviewers and an indication of how the authors have responded to these comments. If any of the material in the manuscript (other than an abstract of not more than 300 words) is submitted or planned for publication elsewhere in any form (including electronic media), or if the information appeared in a previous publication, identify the other submission in the cover letter and include a copy of that publication. This does not apply to documented materials from other sources such as quotations, figures, and tables. Failure to comply with this stipulation may lead to a judgment of redundant publication. Authors found responsible for redundant publication may be barred from submitting manuscripts for up to 3 years; furthermore, a statement identifying the nature and source of the redundant publication may be printed in the journal.

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L. Reporting Guidelines

Responsible reporting of research studies, which includes a complete, transparent, accurate and timely account of what was done and what was found during a research study, is an integral part of good research and publication practice and not an optional extra. Obstetrics & Gynecology supports initiatives aimed at improving the reporting of health research.

We ask authors to use the following guidelines when drafting their manuscripts: [LINE SEPARATOR]

  • • CONSORT4 (for reporting randomized controlled trials): Please submit a copy of the CONSORT Checklist, available at http://www.equator-network.org/, and indicate the page number where the required information is provided.
  • • STROBE10,11 (for reporting observational studies): Please submit a copy of the STROBE Checklist, available at http://www.equator-network.org/, and indicate the page number where the required information is provided.
  • • PRISMA12 (for reporting meta-analyses and systematic reviews of randomized controlled trials): Please submit a copy of the PRISMA Checklist, available at http://www.equator-network.org/, and indicate the page number where the required information is provided.
  • • STARD13 (for reporting studies of diagnostic accuracy): Please submit a copy of the STARD Checklist, available at http://www.equator-network.org/, and indicate the page number where the required information is provided.
  • • MOOSE14 (for reporting meta-analyses and systematic reviews of observational studies): In your cover letter, please describe how you followed the MOOSE guidelines, available at http://dx.doi.org/10.1001/jama.283.15.2008.

As noted above, we ask authors to address all items recommended by the guidelines (as a minimum); where this is not possible please provide an explanation in the text to give a transparent account of your study. If there are items on the checklist that you cannot attest to, please itemize these in your cover letter with an explanation. For manuscripts that require reporting guidelines, a checklist or explanation in the cover letter must accompany the submission. The manuscript will be returned to the author if this information is not included in the initial submission. Adherence to recommended reporting guidelines will facilitate review of your manuscript, increase the probability of its successful publication, and improve the usability of research findings from your study in further research and clinical practice.

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II. ARTICLE FORMATS

Several types of articles can be submitted for publication in Obstetrics & Gynecology: Original Research, Case Reports, Systematic Reviews, Current Commentaries, Procedures and Instruments, Personal Perspectives, and Letters to the Editor. Select article types, such as Editorials and Clinical Expert Series articles, are solicited by the editors. Stated page limits in II.A–F include all numbered pages in a manuscript (ie, title page, précis, abstract, text, references, tables, boxes, and figure legends). Author agreement forms, checklists, the cover letter, and figures do not contribute to the page limits. See also Table 1.

Table 1

Table 1

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A. Original Research

An original research article is a full-length report of an original basic or clinical investigation. Length should not exceed 22 manuscript pages (Table 1).

1) Abstract: Original research reports should have a structured abstract of no more than 250 words, using the following headings:

  • Objective: Main question, objective, or hypothesis (single phrase starting with, for example, “To evaluate...” or “To estimate...”)
  • Methods: Study design, participants, outcome measures, and, in the case of a negative study, statistical power.
  • Results: Measurements expressed in absolute numbers and percentages, and when appropriate indicate relative risks or odds ratios with confidence intervals and level of statistical significance; any results contained in the abstract should also be presented in the body of the manuscript, tables, or figures.
  • Conclusion: Directly supported by data, along with clinical implications.
  • Clinical Trial Registration: Registry name, URL, and registration number (if applicable).

2) Headings: Organize original research reports in a manner similar to their structured abstract.

  • Introduction: Orients the reader to the problem(s) addressed by the report, preferably in one page or less, and clearly states the purpose or objective of the research. Avoid a detailed literature review in this section.
  • Materials and Methods: Describes the research methodology in sufficient detail so that others could duplicate the work. This section should state that an appropriate IRB approved the research (or that the research was exempt from approval) and that the participants gave informed consent. In all cases, the complete name of the IRB should be provided in the manuscript. Identify methods of statistical analysis and, when appropriate, state the basis (including alpha and beta error estimates) for their selection. Cite any statistical software programs used in the text. Express P values to no more than three decimal places. Indicate your study’s power to detect statistical difference.
  • Results: Presents the findings in appropriate detail. Tables and figures may be used, but take care to minimize duplication between text and tables or figures. Authors should report outcome data as both absolute and relative effects since information presented this way is much more useful for clinicians. Actual numbers and percentages should be given in addition to odds ratios or relative risk. When appropriate, number needed to treat for benefits (NNTb) or harm (NNTh) should be supplied.15,16
  • Discussion: Begin with a description of what your study found in relation to the purpose or objectives as stated in the Introduction. Describe rather than repeat results given earlier. Your findings should be compared to previous studies with explanations in cases where they differ, although a. complete review of the literature is not necessary. Comment on the limitations of your study. Clearly state the importance of these findings to clinicians and actual patient care. Although some degree of speculation as to the importance of the observations is permissible, avoid making conclusions unrelated to the data presented. Primacy claims purporting that your study is the first or largest of its type should either be supported by a description of your search strategy or omitted. A final summary is not necessary, as this information should be provided in the abstract and the first paragraph of the Discussion. Although topics that require future research can be mentioned, it is unnecessary to state that “further research is needed.” The Discussion should not exceed three pages in length.
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B. Case Reports

Case reports are published twice yearly as a supplement to the February and August issues. A case report is a brief description of up to three cases of a particular condition that reports an unusual case presentation or novel diagnostic or therapeutic approach. Length should not exceed 8 manuscript pages (Table 1). Write the case in a way that preserves the confidentiality of the participants. The report should have a clear purpose and teaching point; simply being the first case reported does not usually justify publication.

1) Abstract: Case reports should have a structured abstract of no more than 125 words, using the following headings:

  • Background: Importance of the subject matter and specific purpose of the report.
  • Case(s): Summary of pertinent features of the clinical findings, important laboratory abnormalities, treatment, and outcome.
  • Conclusion: Summary of the principal finding and why it is unique or worthy of mention, indicating relevance to clinical practice.

2) Headings: Case report articles have three basic components:

  • Introduction: Gives a brief background about why the case is important.
  • Case(s): Describes the case(s) in a narrative format and includes the essential findings and patient management.
  • Comment: Includes a brief review of the literature but focuses primarily on the clinical implications of the case(s) presented.
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C. Systematic Reviews

A systematic review article is a comprehensive review of publications relating to a specific clinical subject accompanied by critical analysis and conclusions. Authors should include the following databases in their search for publications: MEDLINE and ClinicalTrials.gov (www.clinicaltrials.gov). The manuscript should not exceed 25 pages (Table 1). Review articles must follow the PRISMA12 or MOOSE14 guidelines (http://ong.editorialmanager.com) and the appropriate checklists and flow diagrams must be submitted, as applicable.

1) Abstract: Systematic review articles should have a structured abstract of no more than 300 words, using the following headings:

  • Objective: Statement of purpose of the review.
  • Data Sources: Sources searched, including dates, terms, and constraints.
  • Methods of Study Selection: Number of studies reviewed and selection criteria.
  • Tabulation, Integration, and Results: Guidelines for extracting data, methods of correlating, and results of review.
  • Conclusion: Primary conclusions and their clinical applications.

2) Headings: Review articles should be organized in a manner similar to their structured abstract.

  • Introduction: Indicates why the topic is important and states the specific objective(s) of the review.
  • Sources: Identifies what was searched and how; if a computerized system was used, specify the dates searched, the language (s) covered, and the search terms used.
  • Study Selection: Identifies the number and nature of reports reviewed, the basis of any selection (ie, exclusion and inclusion criteria), and the reports in the final tabulation.
  • Results: Describes how observations across studies were tabulated and integrated into a cohesive whole.
  • Conclusion: Includes what can be concluded from the exercise, along with clinical implications and need for additional research.
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D. Current Commentary

Current Commentary essays address issues, opinions, experiences, or perspectives of clinical relevance to the field of obstetrics and gynecology and obstetrician–gynecologists. Length should not exceed 12 manuscript pages (Table 1). The abstract should be a single paragraph that states what was done, what was found, and what the findings mean. Headings are not necessary in the body of the article.

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E. Procedures and Instruments

Procedures and Instruments articles detail novel methods or applications of methods, treatments, interventions, instruments, or applications of instruments for clinical care or research in obstetrics and gynecology. Length should not exceed 8 manuscript pages (Table 1). Authors are strongly encouraged to include a video suitable for posting on the Obstetrics & Gynecology web site.

1) Abstract: Procedures and Instruments articles should have a structured abstract of no more than 200 words, using the following headings:

  • Background: Information as to why the technique may be important.
  • Instrument, Method, or Technique: A summary description of what is being reported.
  • Experience: A summary of the author’s experience with the technique.
  • Conclusion: A simple statement of what can be concluded from the report.

2) Headings: Procedures and Instruments articles have four components:

  • Introduction: Outlines the need for the new development.
  • Method or Technique: Describes the innovation, usually with illustrations and video.
  • Experience: Reports experience with the technique and what the general outcomes were.
  • Comment: Describes the implications of the findings.
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F. Personal Perspectives

Personal Perspectives essays offer insights into the practice of medicine, with an emphasis on the unique physician–patient relationship. Essays from various viewpoints—physician, nurse, patient—are welcome. A short essay for light reading addressing a topic pertinent to the discipline, including humor or satire, is also appropriate for this section. Length should not exceed 12 manuscript pages (Table 1). Abstracts are not included in this feature, and headings are not needed in the body of the article.

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G. Letters to the Editor

Letters posing a question or challenge to an article appearing in Obstetrics & Gynecology within 6 weeks of the article’s publication online will be considered for publication. Letters received after 6 weeks will rarely be considered.

Submit letters through the Internet at http://ong.editorialmanager.com (Editorial Manager). Letters are limited to a maximum of 350 words, including signatures and 5 references. A word count should be provided. The maximum number of authors permitted is four, and a corresponding author should be designated. All authors’ full names, degrees, and affiliations (including city, state, and country) should be included. The corresponding author’s address, telephone number, and e-mail address should appear at the end of the letter. A signed author agreement form is required from all authors before publication.

Letters will be published at the discretion of the Editor. The Editor may send the letter to the authors of the original paper so their comments may be published simultaneously. The Editor reserves the right to edit and shorten letters.

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III. Stand-Alone Video Gallery

The editors encourage the submission of videos for inclusion in the journal’s stand-alone video player. These videos will undergo review before being posted online, and authors must sign the journal’s author agreement form.

If you are interested in submitting a video for consideration, please submit your written proposal to the editorial office at obgyn@greenjournal.org, or call 202-314-2317.

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IV. MANUSCRIPT STRUCTURE

All manuscripts must be submitted as Microsoft Word (.doc or .docx) or Open Document word processing (.odt) files. All manuscript pages (including references, tables, and figure legends) must be double-spaced. Use a standard, 12 point typeface such as Times New Roman or Arial. Top, bottom, and side margins should be set at 1 inch. The first author’s name should appear in the header on each page, and each page and line must be numbered consecutively, beginning with the title page. The use of subheadings is discouraged in all but the most complex of papers. Footnotes are not allowed except in tables or figures. For direct quotations, acknowledge the author and source. Authors must include the following in the manuscript file:

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A. Title Page

The title page should list:

  • • The manuscript title, which should contain no more than a total of 100 characters (counting letters and spaces) and should not be declarative; do not use abbreviations or commercial names in the title.
  • • All author name(s), institutional, corporate, or commercial affiliations, and major degree(s).
  • • Corresponding author’s name, address, telephone number, and e-mail address (the corresponding author will be responsible for all correspondence and other matters relating to the manuscript).
  • • Source(s) of the work or study.
  • • Disclosure of any source of financial support of the study, including provision of supplies or services from a commercial organization (see section I.E for more information).
  • • Disclosure of funding received for this work from any of the following organizations: National Institutes of Health, Wellcome Trust, Howard Hughes Medical Institute, and other(s).
  • • A short title of no more than 45 characters (40 characters for case reports), including spaces, for use as a running foot.
  • • Acknowledgments
    • ○ All financial support of the study must be acknowledged (refer to section I.E for more information).
    • ○ Any and all manuscript preparation assistance (refer to section I.A for more information). Such acknowledgments must identify the entities that provided and paid for this assistance, whether directly or indirectly.
    • ○ All persons who contributed to the work reported in the manuscript, but not sufficiently to be authors, must be acknowledged (refer to section I.A for more information).
    • ○ Obtain written permission from all individuals named in the acknowledgments. Acknowledgment permissions need not be submitted to the journal; rather, the corresponding author should keep them on file. By signing the journal’s author agreement form, the corresponding author verifies that permission has been obtained from all named persons.
    • ○ Authors should note if the paper was part of a presentation at a meeting and include the dates and location of the meeting in the acknowledgments (see section I.J).
    • ○ Other acknowledgments, such as advice or patient referral, are not permitted.
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B. Précis

On the second page, authors should provide a précis, for use in the Table of Contents. The précis is a single sentence of no more than 25 words, written in the present tense and stating the conclusion(s) of the report (ie, the bottom line). The précis should be similar to the abstract’s conclusion. Do not use commercial names in the précis.

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C. Abstract

Abstracts should appear on the third page of the manuscript. All information in the abstract should be consistent with the information in the text, tables, or figures. Avoid use of commercial names in the abstract. See Section II for more information on how to format the abstract based on article type.

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D. Text

The main body of the article appears after the abstract. See Section II for more information on how to format the body based on article type. Authors should also keep the following style considerations in mind:

Abbreviations and Acronyms. Only standard abbreviations and acronyms are allowed. A selected list is available online at http://ong.editorialmanager.com. Abbreviations and acronyms cannot be used in the title or précis. Abbreviations and acronyms must be spelled out the first time they are used in the abstract and again in the body of the manuscript.

Commercial Names. The commercial name (with the generic name in parentheses) may be used once in the body of the paper; use the generic name at each mention thereafter.

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E. References

Use references found published in peer-reviewed publications that are generally accessible. Unpublished data, personal communications, statistical programs, papers presented at meetings and symposia, abstracts, letters, and manuscripts submitted for publication cannot be listed in the references. Information from such sources may be cited, if necessary, in the text with the sources given in parentheses. Papers accepted by peer-reviewed publications but not yet published (“in press”) are not acceptable as references.

References are numbered consecutively in the order in which they appear in the text (note that references should not appear in the abstract) and listed double-spaced at the end of the manuscript. Identify citations on the line within parentheses.

Authors are responsible for the accuracy of all references. Examples of specific types of references are available online (http://ong.editorialmanager.com).

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F. Figure Legends

Each piece of art should have an accompanying legend. Group all legends on a single, separate page of the manuscript, not on the figure itself. A sentence or two is usually sufficient. Identify any abbreviations or symbols in the legend. In the case of photomicrographs, provide magnification and stain data.

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G. Tables

Create tables using the table function in word processing software. Do not use tabs and spaces to create columns.

Each table should be double-spaced on a separate page, numbered by the Arabic system, and identified by a clear and concise title at the top. Group tables at the end of the manuscript; do not intersperse within the text. Cite each table, in order by number, in the manuscript. Information should be sufficiently detailed to allow the table to be understood by itself. Report demographic information in tabular form. Do not use a table for data that can be described adequately in two or three sentences in the text. Standard rules of capitalization should be observed in the tables. Column totals should be verified and percentages should add up to 100% (if they do not, specify a reason). If one column or row of a table has the same entry for each cell, it should probably be deleted and the information be conveyed in a footnote. Account for any blank cells in a footnote. For borrowed selections, the original source should appear as a footnote.

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V. FIGURES

If the submission includes figures, art saved in digital format should be submitted. Figures must be submitted as individual files separate from the document file in Editorial Manager. Refer to the digital art guidelines and artwork checklist on the journal’s web site for more direction on digital art preparation and examples of acceptable art (http://ong.editorialmanager.com). Source files, EPS or PDF files, or higher-resolution TIFFs may be requested. Art that is low resolution, digitized, adapted from slides, or downloaded from the Internet will not reproduce well. Graphs created in Microsoft Word, PowerPoint, or Excel should be submitted as .doc or .docx, .xls or .xlsx, or .ppt or .pptx files, but no graphs or images should be pasted into PowerPoint or Word. Original, high-resolution or editable files are needed. Unacceptable art may be redrawn or removed from the article.

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VI. SUPPLEMENTAL DIGITAL CONTENT

Authors may submit supplemental digital content to enhance their article’s text and to be considered for online-only posting.

Supplemental digital content may include the following types of content: text documents, graphs, tables, figures, graphics, illustrations, audio, and video.

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A. Guidelines for Supplemental Digital Content

Cite all supplemental digital content consecutively in the text. Citations should include the type of material submitted, should be clearly labeled as “Supplemental Digital Content,” should include a sequential number, and should provide a brief description of the supplemental content. Provide a legend for supplemental digital content at the end of the text. List each legend in the order in which the material is cited in the text. The legends must be numbered to match the citations from the text.

Include a title and a brief summary of the content. For audio and video files, also include the author name, title, summary, videographer, participants, length (minutes), and size (MB).

Authors should ensure that patients are not identifiable in the supplemental digital content unless they obtain written consent from the patients and document that they have obtained consent in the cover letter submitted with the manuscript.

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B. Submission of Supplemental Digital Content

When submitting supplemental digital content online to Editorial Manager, the digital files should be uploaded along with your other submission items.

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C. File Size and Types

To ensure a quality experience for those viewing supplemental digital content, the journal’s publisher suggests that authors submit supplemental digital files no larger than 10 MB each.

See the box for a list of acceptable file types for supplemental digital content.

For more information, please review the publisher’s requirements for submitting supplemental digital content (http://links.lww.com/A142).

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VII. COVER ART

For each issue, the editors may select a piece of art from the issue to be placed on the cover of the journal. This art may consist of informative illustrations, diagrams, or clinical images. Authors who believe that their submission includes potential cover art should note this fact in their cover letter. All potential cover art must be submitted as TIFF files of not less than 300 dpi.

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REFERENCES

1. International Committee of Medical Journal Editors. Recommendations for the conduct, reporting, editing, and publication of scholarly work in medical journals: roles and responsibilities of authors, contributors, reviewers, editors, publishers, and owners: defining the role of authors and contributors. Available at: http://www.icmje.org/roles_a.html. Retrieved November 8, 2013.
2. Altman DG, Moher D. Declaration of transparency for each research article. BMJ 2013;347:f4796. Available at: http://www.bmj.com/content/347/bmj.f4796. Retrieved November 8, 2013.
3. Scott-Lichter D and the Editorial Policy Committee, Council of Science Editors. CSE’s white paper on promoting integrity in scientific journal publications, 2012 update. 3rd revised edition. Wheat Ridge (CO); 2012. Available at: http://www.councilscienceeditors.org/i4a/pages/index.cfm?pageid=3331. Retrieved November 6, 2013.
4. Schulz KF, Altman DG, Moher D, for the CONSORT Group. CONSORT 2010 statement: updated guidelines for reporting parallel group randomized trials. Obstet Gynecol 2010;115:1063–70.
5. DeAngelis CD, Drazen JM, Frizelle FA, Haug C, Hoey J, Horton R, et al.. Clinical trial registration: a statement from the International Committee of Medical Journal Editors. JAMA 2004;292:1363–4.
6. International Committee of Medical Journal Editors. Frequently asked questions: questions about clinical trials registration. Available at http://www.icmje.org/faq_clinical.html. Retrieved November 6, 2013.
7. U.S. Department of Health and Human Services. Code of federal regulations. Title 45 Public welfare. Department of Health and Human Services. Part 46: Protection of human subjects. Available at: http://www.hhs.gov/ohrp/humansubjects/guidance/45cfr46.html. Retrieved November 6, 2013.
8. Merriam-Webster’s collegiate dictionary. 11th ed. Springfield (MA): Merriam-Webster, Incorporated; 2003.
9. International Committee of Medical Journal Editors. Recommendations for the conduct, reporting, editing, and publication of scholarly work in medical journals (ICMJE recommendations). Available at: http://www.icmje.org/urm_main.html. Retrieved November 6, 2013.
10. von Elm E, Altman DG, Egger M, Pocock SJ, Gøtzsche PC, Vandenbroucke JP, for the STROBE initiative. The strengthening the reporting of observational studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. Lancet 2007;370:1453–57.
11. Vandenbroucke JP, von Elm E, Altman DG, Gøtzsche PC, Mulrow CD, Pocock SJ, et al.. Strengthening the reporting of observational studies in epidemiology (STROBE): explanation and elaboration. PLoS Med 2007;4:e297. doi: 10.1371/journal.pmed.0040297
12. Moher D, Liberati A, Tetzlaff J, Altman DG, and the PRISMA Group. Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement. Ann Intern Med 2009;151:264–9.
13. Bossuyt PM, Reitsma JB, Bruns DE, Gatsonis CA, Glasziou PP, Irwig LM, et al.. Towards complete and accurate reporting of studies of diagnostic accuracy: The STARD Initiative. Standards for Reporting of Diagnostic Accuracy. Ann Intern Med 2003;138:40–44.
14. Stroup DF, Berlin JA, Morton SC, Olkin I, Williamson GD, Rennie D, et al.. Meta-analysis of observational studies in epidemiology: a proposal for reporting. Meta-analysis of Observational Studies in Epidemiology (MOOSE) group. JAMA 2000;283: 2008–12.
15. Nuovo J, Melnikow J, Chang D. Reporting number needed to treat and absolute risk reduction in randomized controlled trials. JAMA 2002;287:2813–4.
16. Straus SE, Richardson WS, Glasziou P, Haynes RB. Evidence based medicine: how to practice and teach EBM. 3rd ed. Edinburgh: Churchill Livingstone; 2005.

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© 2014 by The American College of Obstetricians and Gynecologists. Published by Wolters Kluwer Health, Inc. All rights reserved.