Department of Pathology Peking Union Medical College Hospital Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100730 China;
Department of Pulmonary Medicine Peking Union Medical College Hospital Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100730 China;
Department of Pulmonary and Critical Care Medicine United Family Hospitals and Clinics-Beijing Beijing 100016 China;
Department of Radiology Peking Union Medical College Hospital Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100730 China;
Department of Rheumatology Peking Union Medical College Hospital Chinese Academy of Medical Sciences & Peking Union Medical College Beijing 100730 China;