[1] Peking Univ, Dept Otorhinolaryngol Head & Neck Surg, Hosp 1, 8 Xishiku St, Beijing 100034, Peoples R China
[2] Chinese Peoples Liberat Army Gen Hosp, Dept Otorhinolaryngol Head & Neck Surg, Med Ctr 6, 6 Fucheng Rd, Beijing 100048, Peoples R China
[3] Second Mil Med Univ, Changhai Hosp, Dept Otorhinolaryngol Head & Neck Surg, 168 Changhai St, Shanghai 200433, Peoples R China
[4] Peking Univ, Dept Otorhinolaryngol Head & Neck Surg, Hosp 3, Beijing, Peoples R China
[5] Southern Med Univ, Nanfang Hosp, Dept Otorhinolaryngol Head & Neck Surg, Guangzhou, Guangdong, Peoples R China
[6] Peking Univ, Dept Otorhinolaryngol Head & Neck Surg, Peoples Hosp, Beijing, Peoples R China
[7] China Japan Friendship Hosp, Dept Otorhinolaryngol Head & Neck Surg, Beijing, Peoples R China
[8] Peking Univ, Hosp 3, Res Ctr Clin Epidemiol, Beijing, Peoples R China
[9] Nanjing Univ, Affiliated Drum Tower Hosp, Dept Otorhinolaryngol Head & Neck Surg, Med Sch, Nanjing, Jiangsu, Peoples R China
[10] Wuhan Univ, Dept Otorhinolaryngol Head & Neck Surg, Zhongnan Hosp, Wuhan, Hubei, Peoples R China
[11] Huazhong Univ Sci & Technol, Union Hosp, Tongji Med Coll, Dept Otorhinolaryngol Head & Neck Surg, Wuhan, Hubei, Peoples R China
[12] Sichuan Univ, Dept Otorhinolaryngol Head & Neck Surg, West China Hosp, Chengdu, Sichuan, Peoples R China
[13] China Med Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp 1, Shenyang, Liaoning, Peoples R China
[14] Nanchang Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp 1, Nanchang, Jiangxi, Peoples R China
[15] Tianjin First Cent Hosp, Dept Otorhinolaryngol Head & Neck Surg, Tianjin, Peoples R China
[16] Xiamen Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp 1, Xiamen, Fujian, Peoples R China
[17] Henan Prov Peoples Hosp, Dept Otorhinolaryngol Head & Neck Surg, Zhengzhou, Henan, Peoples R China
[18] Shanghai Jiao Tong Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Peoples Hosp 6, Shanghai, Peoples R China
[19] Sun Yat Sen Univ, Affiliated Hosp 3, Dept Otorhinolaryngol Head & Neck Surg, Guangzhou, Guangdong, Peoples R China
[20] Hainan Prov Peoples Hosp, Dept Otorhinolaryngol Head & Neck Surg, Hiakou, Hainan, Peoples R China
[21] Harbin Med Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp 2, Harbin, Heilongjiang, Peoples R China
[22] Peking Univ, Dept Otorhinolaryngol Head & Neck Surg, Shenzhen Hosp, Shenzhen, Guangdong, Peoples R China
[23] Fujian Prov Hosp, Dept Otorhinolaryngol Head & Neck Surg, Fuzhou, Fujian, Peoples R China
[24] Yangzhou Univ, Dept Otorhinolaryngol Head & Neck Surg, Clin Med Sch, Yangzhou, Jiangsu, Peoples R China
[25] Zunyi Med Coll, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp, Zunyi, Guizhou, Peoples R China
[26] Xi An Jiao Tong Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp 2, Xian, Shaanxi, Peoples R China
[27] Cent South Univ, Xiangya Hosp 2, Dept Otorhinolaryngol Head & Neck Surg, Changsha, Hunan, Peoples R China
[28] Guangdong Prov Peoples Hosp, Dept Otorhinolaryngol Head & Neck Surg, Guangzhou, Guangdong, Peoples R China
[29] Inner Mongolia Med Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp, Hohhot, Inner Mongolia, Peoples R China
[30] Capital Med Univ, Beijing Friendship Hosp, Dept Otorhinolaryngol Head & Neck Surg, Beijing, Peoples R China
[31] Univ Sci & Technol China, Anhui Prov Hosp, Div Life Sci & Med, Dept Otolaryngol Head & Neck Surg,Affiliated Hosp, Hefei, Anhui, Peoples R China
[32] Fujian Med Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp 1, Fuzhou, Fujian, Peoples R China
[33] Chengdu First Peoples Hosp, Dept Otorhinolaryngol Head & Neck Surg, Chengdu, Sichuan, Peoples R China
[34] Army Mil Med Univ, Xinqiao Hosp, Dept Otorhinolaryngol Head & Neck Surg, Chongqing, Peoples R China
[35] Wuxi Peoples Hosp, Dept Otorhinolaryngol Head & Neck Surg, Wuxi, Jiangsu, Peoples R China
[36] Dalian Cent Hosp, Dept Otorhinolaryngol Head & Neck Surg, Dalian, Liaoning, Peoples R China
[37] Shenzhen Univ, Dept Otorhinolaryngol Head & Neck Surg, Gen Hosp, Shenzhen, Guangdong, Peoples R China
[38] Bethune Int Peace Hosp, Dept Otorhinolaryngol Head & Neck Surg, Shijiazhuang, Hebei, Peoples R China
[39] Air Force Mil Med Univ, Xijing Hosp, Dept Otorhinolaryngol Head & Neck Surg, Xian, Shaanxi, Peoples R China
[40] Jiangmen Cent Hosp, Dept Otorhinolaryngol Head & Neck Surg, Jiangmen, Guangdong, Peoples R China
[41] Southwest Med Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp, Luzhou, Sichuan, Peoples R China
[42] Xiamen Univ, Zhongshan Hosp, Dept Otorhinolaryngol Head & Neck Surg, Xiamen, Fujian, Peoples R China
[43] Shanxi Med Univ, Dept Otorhinolaryngol Head & Neck Surg, Hosp 1, Taiyuan, Shanxi, Peoples R China
[44] Anhui Med Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp 2, Hefei, Anhui, Peoples R China
[45] Zhejiang Univ, Sir Run Run Shaw Hosp, Dept Otorhinolaryngol Head & Neck Surg, Hangzhou, Zhejiang, Peoples R China
[46] Harbin Med Univ, Dept Otorhinolaryngol Head & Neck Surg, Affiliated Hosp 1, Harbin, Heilongjiang, Peoples R China
[47] PLA Strateg Support Force Characterist Med Ctr, Dept Otorhinolaryngol Head & Neck Surg, Beijing, Peoples R China
[48] Chinese Peoples Armed Police Force, Dept Otorhinolaryngol Head & Neck Surg, Sichuan Prov Corps Hosp, Leshan, Sichuan, Peoples R China
[49] Gen Hosp Northern Theater Command, Dept Otorhinolaryngol Head & Neck Surg, Shenyang, Liaoning, Peoples R China
[50] First Hosp Longyan City, Dept Otorhinolaryngol Head & Neck Surg, Longyan, Fujian, Peoples R China