[1] Peking Univ, Peoples Hosp, Dept Otolaryngol Head & Neck Surg, Beijing, Peoples R China
[2] Karolinska Univ, Dept Otolaryngol Head & Neck Surg, Solna, Sweden
[3] Zhongshan Hosp, Dept Otolaryngol Head & Neck Surg, Shanghai, Peoples R China
[4] Inner Mongolia Peoples Hosp, Dept Otolaryngol, Hohhot, Inner Mongolia, Peoples R China
[5] Zhoukou Cent Hosp, Dept Otolaryngol, Zhoukou, Peoples R China
[6] First Hosp Qinhuangdao, Dept Otolaryngol, Qinhuangdao, Peoples R China
[7] Sheng Jing Hosp, Dept Otolaryngol Head & Neck Surg, Shenyang, Peoples R China
[8] Dalian Med Univ, Affiliated Hosp 1, Dept Otolaryngol, Dalian, Peoples R China
[9] Chongqing Med Univ, Affiliated Hosp 1, Dept Otolaryngol, Chongqing, Peoples R China
[10] Peoples Liberat Army Gen Hosp, Med Ctr 3, Dept Otolaryngol Head & Neck Surg, Beijing, Peoples R China
[11] Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol Head & Neck Surg, Beijing, Peoples R China
[12] Shanxi Med Univ, Hosp 1, Dept Otolaryngol Head & Neck Surg, Taiyuan, Peoples R China
[13] Karolinska Inst, Dept Clin Sci Intervent & Technol, Stockholm, Sweden