1. From the Internal Medicine, Endocrine Division (A.B., D.Z., L.L., S.-L.C., M.M., B.R., P.S., D.A.T.), UT Southwestern Medical Center, Dallas, TX
2. Biochemistry (M.G., A.L.), UT Southwestern Medical Center, Dallas, TX
3. Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston (H.M.K.).