1. Department of Pulmonary and Critical Care Medicine, Ruijin Hospital, Institute of Respiratory Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
2. Institute of Respiratory Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
3. Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
4. Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
5. Department of Pulmonary and Critical Care Medicine, Changhai Hospital, Shanghai, People's Republic of China
6. Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital Wenzhou Medical College, Zhejiang, People's Republic of China
7. Department of Emergency Medicine, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
8. Department of Pulmonary and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, People's Republic of China
9. Department of Pulmonary and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, People's Republic of China
10. Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, People's Republic of China
11. Department of Pulmonary and Critical Care Medicine, China–Japan Friendship Hospital, Beijing, People's Republic of China
12. Department of Pulmonary and Critical Care Medicine, The General Hospital of the People's Liberation Army, Beijing, People's Republic of China
13. Department of Pulmonary and Critical Care Medicine, Jinling Hospital, Nanjing, People's Republic of China
14. Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital Zhejiang University, Hangzhou, People's Republic of China
15. Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Sichuan, People's Republic of China
16. Department of Pulmonary and Critical Care Medicine, The First Affiliate Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
17. Department of Pulmonary and Critical Care Medicine, Xinqiao Hospital of Army Medical University, Chongqing, People's Republic of China
18. Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Beijing, People's Republic of China
19. Department of Pulmonary and Critical Care Medicine, Fuzhou General Hospital, Fuzhou, People's Republic of China