1. Department of Communication and Science Studies Program, University of California San Diego, La Jolla, CA, USA
2. Department of Public Health, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
3. Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
4. Department of Internal Medicine, National Chang Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
5. Department of Nursing, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
6. Department of Internal Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
7. School of Public Health, National Yang-Ming University, Taipei, Taiwan
8. Division of Infectious Diseases, Department of Medicine, Taipei City Hospital Renai Branch, Taipei, Taiwan