1. Section on Diabetes and Intermediary Metabolism, Clinical Endocrinology Branch, National Institute of Arthritis, Metabolism, and Digestive Diseases, Bethesda, Maryland 20014
2. Immunology Branch, National Cancer Institute, Bethesda, Maryland 20014
3. Section on Diabetes and Intermediary Metabolism, National Institute of Arthritis, Metabolism, and Digestive Diseases Bethesda, Maryland 20014