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About the Journal

Obstetrics & Gynecology is the official publication of the American College of Obstetricians and Gynecologists (the College). Popularly known as "The Green Journal," Obstetrics & Gynecology has been published since 1953. Then as is now, the goal of the journal is to promote excellence in the clinical practice of obstetrics and gynecology and closely related fields.

Obstetrics & Gynecology reaches over 45,000 members and non-member subscribers.

Impact Factor
Obstetrics & Gynecology's 2017 impact factor is 4.982. The journal's ranking is the fifth highest impact factor out of all 82 obstetrics and gynecology journals.


Most content in Obstetrics & Gynecology will be published online 2 weeks ahead of the print mail date. Items that are generally not published ahead-of-print include corrections/errata, letters to the editor, and official ACOG documents (eg, Practice Bulletins).

All material published ahead-of-print is embargoed until 5:00 PM ET on the date listed below:

January 2019 issue: December 6, 2018
February 2019 issue: January 10, 2019
March 2019 issue: February 7, 2019
April 2019 issue: March 12, 2019
May 2019 issue: April 9, 2019
June 2019 issue: May 9, 2019
July 2019 issue: June 11, 2019
August 2019 issue: July 11, 2019
September 2019 issue: August 8, 2019
October 2019 issue: September 10, 2019
November 2019 issue: October 10, 2019
December 2019 issue: November 6, 2019

In general, corrections/errata, letters to the editor, and official ACOG documents are embargoed until 5:00 PM ET on the date listed below:

January 2019 issue: December 20, 2018
February 2019 issue: January 24, 2019
March 2019 issue: February 21, 2019
April 2019 issue: March 26, 2019
May 2019 issue: April 23, 2019
June 2019 issue: May 23, 2019
July 2019 issue: June 25, 2019
August 2019 issue: July 25, 2019
September 2019 issue: August 22, 2019
October 2019 issue: September 24, 2019
November 2019 issue: October 24, 2019
December 2019 issue: November 20, 2019

The embargo is rigidly enforced. ACOG staff may not release or discuss with outside parties any upcoming studies or ACOG documents prior to the embargo. This includes verification that said documents indeed are being released. This policy applies to members of the media, study authors, public information officers at universities and other institutions, and all others with access to articles published in Obstetrics & Gynecology.

Representatives of the press may request further information about Obstetrics & Gynecology articles by contacting ACOG's Communications Department at

About the Publisher
Obstetrics & Gynecology is published for the American College of Obstetricians and Gynecologists by Wolters Kluwer Health, an international provider of quality information in all media for physicians and other health care professionals in training and in practice. For information about their products, visit the Wolters Kluwer Online Store at

Obstetrics & Gynecology participates in the Health InterNetwork Access to Research Initiative (HINARI). Academic, research, and government institutions in qualifying countries may obtain information at