University of Utah School of Medicine, Salt Lake City, Utah; RTI International, Research Triangle Park, North Carolina; Pregnancy and Perinatology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland; the University of Virginia. Charlottesville, Virginia; Rollins School of Public Health, Emory University, Atlanta, Georgia; the University of Texas Medical Branch at Galveston, Galveston, Texas; Brown University School of Medicine, Providence, Rhode Island; the University of Texas Health Science Center at San Antonio, San Antonio, Texas; McGovern Medical School at the University of Texas Health Science Center at Houston, Houston, Texas; the University of Texas Health Science Center at Austin, Austin, Texas; and Columbia University, New York, New York.
Corresponding author: Robert M. Silver, MD, Department of Obstetrics and Gynecology, University of Utah School of Medicine, 30 North 1900 East, Room 2B308, Salt Lake City, UT 84132; email: [email protected].
This work, including the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, and approval of the manuscript, was supported by grant funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development: U10-HD045953 Brown University, Rhode Island; U10-HD045925 Emory University, Georgia; U10-HD045952 University of Texas Medical Branch at Galveston, Texas; U10-HDO45955 University of Texas Health Sciences Center at San Antonio, Texas; U10-HD045944 University of Utah Health Sciences Center, Utah; and U01-HD045954 RTI International, RTP.
Financial Disclosure The authors did not report any potential conflicts of interest.
Presented as a poster at the Society for Maternal-Fetal Medicine’s 36th Annual Pregnancy Meeting, February 1–6, 2016, Atlanta, Georgia.
Comments and views of the author(s) do not necessarily represent the views of the Eunice Kennedy Shriver National Institute of Child Health and Human Development.
Each author has indicated that he or she has met the journal's requirements for authorship.
