1. Assistant Professor of Nutrition and Chairman, Department of Nutrition, Simmons College, 300 The Fenway, Boston, Massachusetts 02115.
2. Professor of Endocrinology, Postgraduate Medical Institute, Sofia, Bulgaria.
3. Medical Student, Einstein School of Medicine, 1300 Morris Park Avenue, Bronx, New York 10461.
4. Professor of Endocrinology, Universidad National de Trujillo, Trujillo, Peru.
5. Professor of Experimental Medicine, Department of Nutrition and Food Science, Massachusetts Institute of Technology.