1. The Molecular and Cellular Biology Program (S.M.P.), University of Washington, Seattle, Washington 98195
2. Department of Obstetrics and Gynecology (S.M.P., R.M.M., C.M.C., T.L.C., I.H.L., D.K.C., R.A.S.), University of Washington, Seattle, Washington 98195
3. Department of Life Sciences (R.M.M.), Kinki University, Higashi-Osaka 577-8502, Japan
4. Harvard Reproductive Sciences Center and Reproductive Endocrine Unit (C.S.C., J.J.Y., Y.-M.C., S.B.S.), Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114
5. Department of Physiology and Biophysics (A.E.O., R.A.S.), University of Washington, Seattle, Washington 98195
6. Department of Pharmacology (E.S., P.S.A.), University of Washington, Seattle, Washington 98195
7. Unité Mixte de Recherche 6175 (A.C.), Physiologie de la Reproduction et des Comportements (Institut National de la Recherche Agronomique/Centre National de la Recherche Scientifique/Université de Tours/Haras Nationaux), 37380 Nouzilly, France
8. Department of Biochemistry (R.D.P.), University of Washington, Seattle, Washington 98195
9. Howard Hughes Medical Institute (R.D.P.), University of Washington, Seattle, Washington 98195
10. Division of Endocrinology, Diabetes, and Hypertension (V.M.N.), Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115
11. Division of Endocrinology (Y.-M.C.), Department of Medicine, Boston Children's Hospital