1. Department of Pulmonary Medicine, Peking Union Medical College Hospital Peking Union Medical College and Chinese Academy of Medical Sciences Beijing China
2. Department of Quantitative Health Sciences Cleveland Clinic Cleveland Ohio
3. Department of Medical Record, Peking Union Medical College Hospital Peking Union Medical College and Chinese Academy of Medical Sciences Beijing China
4. Department of Radiology, Peking Union Medical College Hospital Peking Union Medical College and Chinese Academy of Medical Sciences Beijing China