1 Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
2 Department of Critical Care Medicine, Public Health Clinical Centre of Chengdu, Chengdu, Sichuan 610066, China.
3 Clinical Research Centre, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 201204, China.
4 Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
5 Department of Critical Care Medicine, Guang'an People's Hospital, Guang'an, Sichuan 638001, China.
6 Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
7 Department of Infectious Disease, Ganzi Hospital of West China Hospital, Ganzi Tibetan Autonomous Prefecture People's Hospital, Ganzi, Sichuan 626000, China.