Duke University - Department of Obstetrics and Gynecology, University of Alabama at Birmingham - Department of Medicine, University of North Carolina (UNC) at Chapel Hill - School of Medicine, Cleveland Clinic - Obstetrics, Gynecology and Women’s Health Institute, University of Pennsylvania - Perelman School of Medicine, University of New Mexico - Department of Obstetrics, Gynecology and Surgery, Kaiser Permanente, Duke University - Department of Obstetrics and Gynecology, University of Pittsburgh - School of Medicine, University of Pittsburgh - School of Medicine, RTI International - Headquarters - Research Triangle Park, Northwest Texas Physician Group, Brown University - Warren Alpert Medical School, RTI International - Headquarters - Research Triangle Park and Independent