1. Diabetes, Endocrine and Obesity Branch (S.Y.), Bethesda, Maryland 20892
2. Metabolic Diseases Branch (L.S.W., W.F.S., S.J.M.), National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland 20892
3. Craniofacial and Skeletal Diseases Branch, National Institute of Dental and Craniofacial Diseases (M.T.C.), Bethesda, Maryland 20892
4. Endocrine Oncology Section, Surgery Branch, National Cancer Institute (E.K., N.N., G.Q.P.), Bethesda, Maryland 20892
5. Department of Surgery, Albert Einstein College of Medicine (S.K.L.), Bronx, New York 10461
6. Department of Laboratory Medicine, Clinical Center (A.T.R., M.V.D.), National Institutes of Health, Bethesda, Maryland 20892