1. Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Key Laboratory of Otolaryngology, NHFPC - Shandong University, Jinan, Shandong, 250012, P.R. China
2. Department of Otorhinolaryngology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, 200011, P.R. China
3. Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
4. Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA