| Affiliation: | 1. Institute of Respiratory Medicine, Beijing Hospital, Ministry of Heath, , Beijing, China;2. Department of Respiratory Medicine, Capital Medical University, , Beijing, China;3. Beijing Institute of Respiratory Medicine, , Beijing, China;4. Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, , Beijing, China;5. Department of Infectious Diseases and Clinical Microbiology, Beijing Chao‐Yang Hospital, Beijing Institute of Respiratory Medicine, Capital Medical University, , Beijing, China |
