1. Division of Reproductive Endocrinology and Infertility (G.L.R., B.J.V.V.), University of Iowa Roy J and Lucille A Carver College of Medicine, Iowa City, Iowa 52242
2. Department of Molecular Physiology and Biophysics (X.F., M.Z., D.L.S.), University of Iowa Roy J and Lucille A Carver College of Medicine, Iowa City, Iowa 52242
3. Developmental Endocrinology Unit and Laboratory of Hormone and Genetic Molecular LIM/42 (C.B.d., E.M.P., A.C.L.), Sao Paulo University Medical School, Sao Paulo 05403-900, Brazil
4. Division of Pediatric Endocrinology, Department of Pediatrics (A.E.F.K., S.R.A.), School of Medicine of Ribeirão Preto, University of Sao Paulo, Sao Paulo 1409-900, Brazil