1. Peking University China-Japan Friendship School of Clinical Medicine, Beijing 100029, China
2. Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
3. National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
4. Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing 100029, China
5. Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China
6. Clinical Diagnosis Department of Respiratory Diseases Center, China-Japan Friendship Hospital, Beijing 100029, China