1. Division of Reproductive Endocrinology (I.B.-S., S.K., C.E.R., A.H. D.W.P., E.Y.A.), Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland 21201
2. Department of Obstetrics and Gynecology, and Division of Pediatric Research (L.M.R.), Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland 21201