1. Department of Pulmonary and Critical Care Medicine, Peking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical College Beijing China
2. Pathological Department, Peking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical College Beijing China
3. Radiological Department, Peking Union Medical College HospitalChinese Academy of Medical Sciences & Peking Union Medical College Beijing China