1. Division of Chest Medicine, Department of Internal Medicine National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan
2. Division of Rheumatology and Immunology, Department of Internal Medicine National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan
3. Department of Diagnostic Radiology National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan Taiwan