1. Emergency Department, Taipei City Hospital, Ren-Ai Branch
2. Graduate Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Division Biostatistics
3. Research and Diagnostic Center, Centers for Disease Control, Department of Health
4. Department of Tropical Medicine, National Yang-Ming University
5. Field Epidemiology Training Program, Centers for Disease Control
6. Infectious Disease Section, Taipei City Hospital