1 Department of Emergency Medicine, Wan Fang Medical Center, Taipei Medical University, Taipei, Taiwan.
2 Department of Emergency Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
3 Division of Infectious Diseases, Department of Internal Medicine, Wan Fang Medical Center, Associated Professor of Taipei Medical University, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan. Electronic address: 89425@w.tmu.edu.tw.