1. Departments of Pregmama, LLC (L.R.B.), Gaithersburg, Maryland 20886;
2. Departments of Epidemiology and Public Health (L.R.B., A.C.L.M., I.M.) University of Maryland School of Medicine, Baltimore, Maryland 21201;
3. Department of Gynecology and Obstetrics (L.R.B.), Johns Hopkins University School of Medicine, Baltimore, Maryland 21205;
4. Departments of Veterinary Integrative Biosciences (L.R.B.) Texas A&M College of Veterinary Medicine, College Station, Texas 77843;
5. Departments of Veterinary Physiology and Pharmacology (D.C.K.), Texas A&M College of Veterinary Medicine, College Station, Texas 77843;
6. Divisions of Geriatric Medicine and Endocrinology (J.E.M., S.F.), St. Louis University School of Medicine, St. Louis, Missouri 63103;
7. St. Louis Veterans Affairs Medical Center (S.F.), St. Louis, Missouri 63106
8. Departments of Obstetrics, Gynecology, and Reproductive Sciences (C.L.C.), University of Maryland School of Medicine, Baltimore, Maryland 21201;