1. Departments of Head and Neck Surgery (T.I., I.N., F.L.P., A.R.S., S.G.P., J.P.S., I.G.), New York, New York 10065;
2. Pathology (R.G.), Memorial Sloan-Kettering Cancer Center, New York, New York 10065;
3. Department of Pathology (D.L.C.), Cleveland Clinic, Weston, Florida 33331;
4. Department of Endocrinology (R.M.T.), Memorial Sloan-Kettering Cancer Center, New York, New York 10065