1. Department of Emergency Medicine, National Cheng Kung University, College of Medicine and Hospital, Taiwan
2. Department of Graduate Institute of Clinical Medicine, National Cheng Kung University, College of Medicine, Taiwan
3. National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Taiwan
4. Department of Internal Medicine, National Cheng Kung University, College of Medicine and Hospital, Taiwan
5. Department of Medicine, National Cheng Kung University, College of Medicine, Taiwan