1. Department of Respiratory Endoscopy, Department of Respiratory and Critical Care Medicine Shanghai Chest Hospital, Shanghai Jiao Tong University Shanghai China
2. Shanghai Engineering Research Center of Respiratory Endoscopy Shanghai China
3. Department of Radiology Shanghai Chest Hospital, Shanghai Jiao Tong University Shanghai China
4. Department of Medicine University of Chicago Medicine Chicago Illinois USA
5. Department of Pneumology and Critical Care Medicine, Thoraxklinik University of Heidelberg Heidelberg Germany