Institution: | 1. Department of Obstetrics & Gynecology, Baylor College of Medicine, Houston, Texas, USA;2. Department of Obstetrics & Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, Massachusetts, USA;3. Maternal and Child Health Research Center, Department of Obstetrics & Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA |