1. Regional Obstetrical Consultants, University of Tennesse-Chattanooga, Division of Maternal Fetal Medicine, Chattanooga, TN.
2. Warren Alpert Medical School of Brown University, Providence, RI.
3. Division of Clinical Research, Department of Obstetrics and Gynecology, Washington University School of Medicine in St. Louis, St. Louis, MO.
4. Division of Maternal Fetal Medicine, University of Michigan, Ann Arbor, MI.
5. Division of Endocrinology, Metabolism and Lipid Research, Department of Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO.
6. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Washington University School of Medicine in St. Louis, St. Louis, MO.