1. Department of Otolaryngology/Head and Neck Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
2. Department of Otolaryngology/Head and Neck Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.
3. Division of Otolaryngology/Head and Neck Surgery, Department of Surgery, Penn State/Milton S. Hershey Medical Center, Hershey, Pennsylvania.
4. Department of Medicine, University of Michigan, Ann Arbor, Michigan.
5. Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York.
6. Department of Otolaryngology/Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland.
7. Divisions of Endocrine Surgery and Surgical Oncology, Department of Surgery, Yale University School of Medicine, New Haven, Connecticut.