1. Department of Thoracic Surgery Beijing Chao‐Yang Hospital Capital Medical University Beijing China
2. Department of Gastroenterology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
3. Department of Respiratory and Critical Care Medicine Beijing Chao‐Yang Hospital Capital Medical University Beijing China
4. Beijing Institute of Respiratory Medicine Beijing China
5. Beijing Engineering Research Center for Diagnosis and Treatment of Respiratory and Critical Care Medicine (Beijing Chao‐Yang Hospital) Beijing China
6. Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders Beijing China