1. Department of Critical Care Medicine West China Hospital of Sichuan University Chengdu China
2. Department of Critical Care Medicine The First Affiliated Hospital of Sun Yat‐sen University Guangzhou China
3. Office of Program Design and Statistics West China Hospital of Sichuan University Chengdu China
4. Department of Critical Care Medicine The First Affiliated Hospital of Chongqing Medical University Chongqing China
5. Department of Critical Care Medicine Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai China
6. Department of Critical Care Medicine The First Affiliated Hospital of Guangxi Medical University Nanning China
7. Department of Nursing West China Hospital of Sichuan University Chengdu China