1. Department of Respiratory and Critical Care Medicine,
2. Department of Critical Care Medicine, Yongchuan Hospital of Chongqing Medical University, Yongchuan, Chongqing, China;
3. Department of ICU and
4. Department of Respiratory and Critical Care Medicine, the Bishan Hospital of Chongqing, Chongqing, China;
5. Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Chongqing Three Gorges Medical College, Chongqing, China;
6. Department of Critical Care Medicine, the Central Hospital of Dazhou, Dazhou, Sichuan, China;
7. Department of Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan, China;
8. Department of Critical Care Medicine, and
9. Department of Respiratory and Critical Care Medicine, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China;
10. Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, China;
11. Department of Critical Care Medicine, the Affiliated Hospital of Guizhou Medical University, Guizhou, China;
12. Department of Critical Care Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China;
13. Department of Respiratory and Critical Care Medicine, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China;
14. Department of Traditional Medicine and Rehabilitation, the Chest Hospital of Xi'an, Xi'an, China;
15. Department of Critical Care Medicine, Chonqing Public Health Medical Center, Chongqing, China; and
16. Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China;
17. Department of Respiratory and Critical Care Medicine, The People's Hospital of Nanchuan, Chongqing, China