1. The Center for Research in Reproduction (C.R.M., S.K.B., K.A.P., S.Ch., C.A.E., K.D.H., J.C.M.), Department of Internal Medicine, University of Virginia Health System, Charlottesville, Virginia 22908
2. Division of Endocrinology (C.R.M., S.K.B., K.A.P., S.Ch., C.A.E., K.D.H., J.C.M.), Department of Internal Medicine, University of Virginia Health System, Charlottesville, Virginia 22908
3. Division of Reproductive Endocrinology and Infertility (R.Y., R.J.C.), Department of Reproductive Medicine, University of California, San Diego, San Diego, California 92103
4. Division of Endocrinology (C.M.F.), Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah 84108
5. Department of Pediatrics (S.Ca.), Yale University School of Medicine, New Haven, Connecticut 06520