Sichuan University - Department of Critical Care Medicine, The Public Health Clinical Centre of Chengdu - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Tongji University - Clinical Research Centre, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Respiratory & Critical Care Medicine, Guang'an People's Hospital - Department of Critical Care Medicine, Guang'an People's Hospital - Department of Critical Care Medicine, Sichuan University - Department of Orthopaedics, Dazhou Central Hospital - Department of Critical Care Medicine, People's Hospital of Deyang City - Department of Critical Care Medicine, Southwest Medical University - Department of Critical Care Medicine, Suining Central Hospital - Department of Critical Care Medicine, Panzhihua Central Hospital - Department of Critical Care Medicine, University of Electronic Science and Technology of China (UESTC) - Department of Critical Care Medicine, North Sichuan Medical College - Department of Critical Care Medicine, Nanchong Central Hospital - Department of Critical Care Medicine, People's Hospital of Ya'an - Department of Critical Care Medicine, The People’s Hospital of Leshan - Department of Pulmonary and Critical Care Medicine, The First People’s Hospital of Ziyang - Department of Critical Care Medicine, Langzhong People’s Hospital - Department of Critical Care Medicine, Bazhong Central Hospital - Department of Critical Care Medicine, The Second People's Hospital of Neijiang - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Sichuan University - Chinese Evidence-Based Medicine Centre, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine, Sichuan University - Medical Affairs Department, Sichuan University - Department of Critical Care Medicine, Sichuan University - Department of Critical Care Medicine and Sichuan University - Department of Critical Care Medicine