[1]Jinan Mil Gen Hosp, Jinan, Shandong, Peoples R China;
[2]Jilin Univ, Hosp 1, Jilin, Jilin, Peoples R China;
[3]First Peoples Hosp Yunnan Prov, Kunming, Yunnan, Peoples R China;
[4]Shanghai Tenth Peoples Hosp, Shanghai, Peoples R China;
[5]Ningxia Med Univ, Gen Hosp, Ningxia, Peoples R China;
[6]Chinese Peoples Liberat Army Gen Hosp, Beijing, Peoples R China;
[7]Xijing Hosp, Xian, Shaanxi, Peoples R China;
[8]Peoples Hosp Xinjiang, Urumqi, Peoples R China;
[9]Tangdu Hosp, Xian, Shaanxi, Peoples R China;
[10]Fudan Univ, Childrens Hosp, Shanghai, Peoples R China;
[11]Tianjin First Cent Hosp, Tianjin, Peoples R China;
[12]Shanxi Med Univ, Hosp 1, Taiyuan, Shanxi, Peoples R China;
[13]Nanfang Hosp, Guangzhou, Guangdong, Peoples R China;
[14]Peking Union Med Coll Hosp, Beijing, Peoples R China;
[15]Beijing Childrens Hosp, Beijing, Peoples R China;
[16]Xuanwu Hosp, Beijing, Peoples R China;
[17]Hebei Med Univ, Hosp 2, Shijiazhuang, Hebei, Peoples R China;
[18]Zhengzhou Univ, Affiliated Hosp 1, Zhengzhou, Henan, Peoples R China;
[19]Peoples Hosp Gansu Prov, Lanzhou, Gansu, Peoples R China;
[20]Peoples Hosp Jiangxi Prov, Nanchang, Jiangxi, Peoples R China;
[21]Anhui Med Univ, Affiliated Hosp 1, Hefei, Anhui, Peoples R China;
[22]Tongji Hosp, Wuhan, Hubei, Peoples R China;
[23]Fujian Med Univ, Affiliated Hosp 1, Fuzhou, Fujian, Peoples R China;
[24]Zunyi Med Coll, Affiliated Hosp, Zunyi, Peoples R China;
[25]Gulou Hosp, Taizhou, Peoples R China;
[26]Inner Mongolia Peoples Hosp, Hohhot, Peoples R China;
[27]Guangxi Med Univ, Affiliated Hosp 1, Nanning, Peoples R China;
[28]Xiangya Hosp, Changsha, Hunan, Peoples R China;
[29]Daping Hosp, Chongqing, Peoples R China;
[30]Harbin Med Univ, Affiliated Hosp 1, Harbin, Heilongjiang, Peoples R China;
[31]Wenzhou Med Univ, Affiliated Hosp 1, Wenzhou, Peoples R China;
[32]Huaxi Hosp, Nanchong, Peoples R China;
[33]Chongqing Med Univ, Affiliated Hosp 1, Chongqing, Peoples R China;
[34]Peoples Hosp Shanxi Prov, Xian, Shaanxi, Peoples R China;
[35]Qilu Hosp, Jinan, Shandong, Peoples R China;
[36]Fuxing Hosp, Beijing, Peoples R China;
[37]Zhejiang Univ, Sch Med, Childrens Hosp, Hangzhou, Zhejiang, Peoples R China;
[38]Tianjin Med Univ, Gen Hosp, Tianjin, Peoples R China