1. Department of Radiation Oncology, MSKCC, New York, New York, USA.
2. Division of Head and Neck Medical Oncology, Department of Medicine, MSKCC, New York, New York, USA.
3. Department of Surgery, MSKCC, New York, New York, USA.
4. Department of Pathology, MSKCC, New York, New York, USA.
5. Endocrine Service, Department of Medicine, MSKCC, New York, New York, USA.