1. Department of Internal Medicine; Division of Pulmonary and Critical Care Medicine; Chang Gung Memorial Hospital and Chang Gung University; Taoyuan Taiwan
2. Department of Respiratory Therapy; Chang Gung Memorial Hospital; Taoyuan Taiwan
3. Chest Department; Taipei Veterans General Hospital; Taipei Taiwan
4. Institutes of Clinical Medicine; School of Medicine; National Yang-Ming University; Taipei Taiwan
5. Department of Pathology; Chang Gung Memorial Hospital; Taoyuan Taiwan