1. Department of Internal Medicine Tri‐Service General Hospital, National Defense Medical Center Taipei Taiwan
2. Department of Biology and Anatomy National Defense Medical Center Taipei Taiwan
3. Division of Pulmonary and Critical Care Medicine Department of Internal Medicine Tri‐Service General Hospital, National Defense Medical Center Taipei Taiwan
4. Department of Pathology Tri‐Service General Hospital, National Defense Medical Center Taipei Taiwan
5. Division of Chest Medicine Department of Internal Medicine Tri‐Service General Hospital Songshan Branch, National Defense Medical Center Taipei Taiwan
6. Department of Pathology and Laboratory Medicine Kaohsiung Veterans General Hospital Kaohsiung Taiwan