1. Department of Head and Neck Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York.
2. Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York.
3. Department of Pathology, Cleveland Clinic, Weston, Florida.
4. Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York.
5. Department of Endocrinology, Memorial Sloan-Kettering Cancer Center, New York, New York.
6. Department of Head and Neck Oncology and Surgery, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.