1. Department of Medical and Scientific Services, Quintiles, Inc., Research Triangle Park, North Carolina
2. Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, North Carolina
3. Burns and Allen Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
4. Brown University School of Medicine, Providence, Rhode Island
5. Department of Obstetrics and Gynaecology, McMaster University Medical Center, Hamilton, Ontario
6. Division of Pharmaceutical Sciences, Pharmacology-Toxicology, Duquesne University, Pittsburgh, Pennsylvania