University of Pittsburgh - Department of Obstetrics, Gynecology and Reproductive Sciences, University of Nebraska at Omaha - College of Pharmacy, Gilead Sciences, Inc., Gilead Sciences, Inc., Gilead Sciences, Inc., University of Pittsburgh - Department of Pediatrics, University of Pittsburgh - Magee-­Women's Research Institute, University of Pittsburgh - Magee-­Women's Research Institute, University of Pittsburgh - Magee-­Women's Research Institute, University of Pittsburgh - Magee-­Women's Research Institute and University of Pittsburgh - Magee-­Women's Research Institute