Affiliation: | 1.Department of Neurosurgery, West China hospital, Sichuan University, Chengdu, Sichuan 610041, China;2.Department of Intensive Care Medicine, West China hospital, Sichuan University, Chengdu, Sichuan 610041, China;3.Department of Neurology, West China hospital, Sichuan University, Chengdu, Sichuan 610041, China;4.Department of Emergency Medicine, Department of Emergency Medicine, Peking Union Medical College Hospital, Beijing 100730, China. |