1. Department of Internal Medicine, Chi Mei Medical Center, Chiali, Tainan 722013, Taiwan
2. Department of Medical Research, Chi Mei Medical Center, Tainan 710402, Taiwan
3. Department of Information Systems, Chi Mei Medical Center, Tainan 710402, Taiwan
4. Department of Chest Medicine, Taipei Veterans General Hospital, Taipei 112201, Taiwan
5. School of Medicine, National Yang-Ming University, Taipei 112304, Taiwan
6. Department of Internal Medicine, National Taiwan University Hospital, Taipei 100225, Taiwan
7. College of Medicine, National Taiwan University, Taipei 100233, Taiwan