1. Endocrinology Service (E.R., S.F., J.M.D., R.M.T.), New York, New York 10021
2. Rabin Medical Center (E.R.), Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, 49100 Israel
3. Radiology Service (A.B.), New York, New York 10021
4. Department of Endocrinology (J.M.D.), Pontificia Universidad Católica de Chile, Santiago, Chile
5. Head and Neck Surgery Service (A.S.), Memorial Sloan-Kettering Cancer Center, New York, New York 10021