1. Department of Otorhinolaryngology; Fujian Provincial Clinical College of Fujian Medical University; Fuzhou Fujian Province
2. Department of Surgery; Division of Otolaryngology-Head and Neck Surgery; University of Wisconsin School of Medicine and Public Health; Madison Wisconsin U.S.A.
3. Department of Otolaryngology, Eye, Ear, Nose and Throat Hospital; Fudan University; Shanghai China