1. Department of Endocrine Section (A.I.), Department of Medicine, Salem Veterans Affairs Medical Center, Salem, Virginia 24153
2. Division of Endocrinology and Metabolism (P.C.C., K.M., J.D.V.), Department of Internal Medicine, Mayo Medical and Graduate Schools of Medicine, General Clinical Research Center, Mayo Clinic, Rochester, Minnesota 55905
3. Department of Endocrinology (C.Y.B.), Department of Medicine, Tulane University Health Sciences Center, New Orleans, Louisiana 70112