1. Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
2. Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.
3. National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Tainan, Taiwan.
4. Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
5. Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan.
6. Department of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan.