1. Department of Critical Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
2. Department of Intensive Care Department, Peking Union Medical College Hospital, Beijing, China
3. Department of Critical Care Medicine, The First Affiliated Hospital of Tsinghua University, Beijing, China
4. Department of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
5. Department of Intensive Care, West China Hospital, Sichuan University, Chengdu, China
6. Department of Critical Care Medicine, Xiangya Hospital, Central South University, Changsha, China
7. Department of Intensive Care Medicine, Beijing Tongren Hospital, Capital Medical University, Beijing, China
8. Department of Intensive Care Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
9. Department of Critical Care Medicine, Zhejiang Hospital, Hangzhou, China
10. Department of Critical Care Medicine, The Central Hospital of Dalian, Dalian, China
11. Department of Intensive Care Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
12. Department of Critical Care Medicine, The Fourth Hospital of Harbin Medical University, Harbin, China
13. Department of Intensive Care Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, China