1. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
2. Division of Pediatric and Adolescent Gynecology, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
3. Division of Transfusion Medicine and Coagulation, Department of Pathology, Baylor College of Medicine, Houston, Texas