1. Division of Maternal-Fetal Medicine
2. Department of Obstetrics and Gynecology, Boston Medical Center, Boston, Massachusetts
3. Department of Obstetrics and Gynecology, Boston University Chobanian & Avedisian School of Medicine, Boston, Massachusetts
4. Department of Biology, Boston University, Boston, Massachusetts
5. Office of General Counsel, Boston Medical Center, Boston, Massachusetts
6. Department of Anesthesiology, Boston Medical Center, Boston, Massachusetts
7. Department of Anesthesiology, Boston University Chobanian & Avedisian School of Medicine, Boston, Massachusetts.