1. Division of Head and Neck Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
2. Division of Head and Neck Endocrine Surgery, Department of Otolaryngology–Head and Neck Surgery, Oregon Health and Science University, Portland
3. Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York