1. Departments of Endocrine Neoplasia and Hormonal Disorders (L.S., G.J.C., S.I.S.), The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030-4009
2. Departments of Pathology (A.K.E.-N.), The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030-4009
3. Departments of Head and Neck Surgery and Cancer Biology (J.N.M.), The University of Texas M. D. Anderson Cancer Center, Houston, Texas 77030-4009