[1] Chinese Acad Med Sci, Peking Union Med Coll Hosp, Dept Emergency Med, Beijing 100730, Peoples R China
[2] Tianjin Med Univ Gen Hosp, Dept Emergency Med, Tianjin 300052, Peoples R China
[3] Northern Jiangsu Peoples Hosp, Dept Emergency Med, Yangzhou 225001, Peoples R China
[4] Jinhua Municipal Cent Hosp, Dept Emergency Med, Jinhua 321000, Peoples R China
[5] Guangdong Prov Hosp Chinese Med, Dept Emergency Med, Guangdong Prov Key Lab Res Emergency TCM, Guangzhou 510120, Peoples R China
[6] Sichuan Univ, West China Hosp, Dept Emergency Med, Chengdu 610041, Peoples R China
[7] Wenzhou Med Univ, Dept Emergency Med, Affiliated Hosp 1, Wenzhou 325000, Peoples R China
[8] Hebei Med Univ, Dept Emergency Med, Hosp 2, Shijiazhuang 050000, Peoples R China
[9] HuaBei Petr Gen Hosp, Dept Emergency Med, Renqiu 062552, Peoples R China
[10] Capital Med Univ, Dept Emergency Med, Beijing Shijitan Hosp, Beijing 100038, Peoples R China
[11] Peking Univ Third Hosp, Dept Emergency Med, Beijing 100191, Peoples R China
[12] PLA Hosp, Affiliated Hosp 2, Dept Emergency Med, Beijing 100048, Peoples R China
[13] Beijing Haidian Hosp, Dept Emergency Med, Beijing 100080, Peoples R China
[14] Hebei Univ, Affiliated Hosp, Dept Emergency Med, Baoding 071000, Peoples R China
[15] Shenzhen Tradit Chinese Med Hosp, Dept Emergency Med, Shenzhen 518033, Peoples R China
[16] Univ Hong Kong, Ctr Humanities & Med, Hong Kong, Peoples R China
[17] Beijing Hosp, Natl Ctr Gerontol, Beijing 100730, Peoples R China
[18] Jiangsu Prov Hosp, Dept Emergency Med, Yangzhou 210029, Peoples R China
[19] Peking Univ, Peoples Hosp, Dept Emergency Med, Beijing 100044, Peoples R China
[20] Xuzhou Med Univ, Affiliated Suqian Hosp, Dept Emergency Med, Xuzhou 221004, Jiangsu, Peoples R China
[21] Chinese Acad Med Sci, Dept Med Intens Care, Peking Union Med Coll Hosp, Beijing 100730, Peoples R China