1. Division of Pulmonary and Critical Care, Department of Internal MedicineTri‐Service General Hospital, National Defense Medical Center Taipei Taiwan
2. Division of Thoracic Surgery, Department of SurgeryTri‐Service General Hospital, National Defense Medical Center Taipei Taiwan
3. Division of Rheumatology/Immunology/Allergy, Department of Internal MedicineTri‐Service General Hospital, National Defense Medical Center Taipei Taiwan