Byung-Joo Lee
Department of Otorhinolaryngology-Head and Neck Surgery
Pusan National University Hospital
Busan, Korea
Tack-Kyun KwonDepartment of Otorhinolaryngology-Head and Neck Surgery,
Seoul National University College of Medicine, Seoul, Korea
Clark A. Rosen
Division of Laryngology
Department of Otolaryngology Head and Neck Surgery
UCSF Voice & Swallowing Center
University of California, San Francisco
San Francisco, United States