Affiliation: | 1.Department of Emergency, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan, Wangfujing, Dongcheng District, Beijing, 100730, China ;2.Department of Intensive Care Medicine, The Second Hospital of Anhui Medical University, Hefei, 230601, China ;3.School of Humanities and Social Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China ;4.School of Mathematics and Statistics, Nanjing Audit University, Nanjing, 210029, China ; |