Affiliation: | aDepartment of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, MO;bDepartment of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA;cDivision of Intramural Research, Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH/DHHS, Detroit, MI;dDepartment of Obstetrics and Gynecology, Wayne State University/Hutzel Women's Hospital, Detroit, MI;eCenter for Molecular Medicine and Genetics, Wayne State University, and the Department of Epidemiology, Michigan State University, Detroit, MI |