1. Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China–Japan Friendship Hospital, Beijing 100029, China
2. National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
3. Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing 100029, China
4. National Center for Respiratory Medicine, Beijing 100029, China
5. Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing 100091, China
6. Department of Pulmonary and Critical Care Medicine, Weifang Respiratory Disease Hospital, Weifang No.2 Renmin Hospital, Weifang, Shandong 261041, China
7. Department of Clinical Research and Data management, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China
8. Department of Hospital Development Office, China–Japan Friendship Hospital, Beijing 100029, China
9. Department of Medical Rehabilitation, China–Japan Friendship Hospital, Beijing 100029, China
10. Department of Respiratory Medicine, North District of Suzhou Municipal Hospital, Nanjing Medical University, Suzhou, Jiangsu 215000, China.