1. Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
2. Department of Veterans Affairs, The VA Outcomes Group, White River Junction, Vermont
3. Department of Surgery–Otolaryngology and The Dartmouth Institute for Health Policy & Clinical Practice, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
4. Endocrinology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York