1. Division of Endocrinology (T.O.P., V.E., G.N.S.), Department of Internal Medicine, Saint Louis University, Edward A. Doisy Research Center, St. Louis, Missouri 63104
2. Veterans Affairs Puget Sound Health Care Center/Geriatric Research Education and Clinical Centers, S-182 (W.A.B.), Seattle, Washington 98108
3. Department of Chemistry (N.E.), Missouri University of Science and Technology, Rolla, Missouri 65409