1. Department of Internal Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan
2. Department of Internal Medicine, Po Jen General Hospital, Taipei, Taiwan
3. Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
4. Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
5. Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
6. Department of Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan
7. Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
8. China Medical University, Taichung, Taiwan