Affiliation: | 1. Department of Medicine, Keelung Hospital, Department of Health, Executive Yuan, Taiwan;2. Division of Infectious Disease, Department of Medicine, Mackay Memorial Hospital, Taipei, Taiwan;3. Mackay Medicine, Nursing and Management College, Taipei, Taiwan;4. Taipei Medical University, Taipei, Taiwan;5. Microbiology Section, Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan;6. Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan |