1. Department of Otolaryngology-Head and Neck Surgery; Buddist Tzu Chi General Hospital, Taipei Branch School of Medicine, Tzu Chi University; Hualien
2. Department of Otolaryngology-Head and Neck Surgery; Tri-Service General Hospital, National Defense Medical Center; Taipei Taiwan
3. Department of Biology and Anatomy; Tri-Service General Hospital, National Defense Medical Center; Taipei Taiwan