NCT03237221
- Conditions
- Airway Responsiveness, Asthma, Bronchial Diseases, +22 more
- Locations
-
- Beijing Chao-Yang Hospital Beijing, Beijing Municipality, China
- Beijing Tongren Hospital, Capital Medical University Beijing, Beijing Municipality, China
- China-Japan Friendship Hospital Beijing, Beijing Municipality, China
- Xinqiao Hospital，Third Military Medical University Chongqing, Chongqing Municipality, China