1. Reproductive Endocrine Unit (S.S.S., Y.L.P., A.D., Y.J., J.E.H.), Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
2. Center for Reproductive Medicine, Department of Obstetrics and Gynecology (S.S.S.), Brigham and Women’s Hospital, Boston, Massachusetts 02115
3. Division of Hematology/Oncology (F.D., J.G.S.), Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts 02114