Institution: | 1. Department of Internal Medicine, Lotung Poh‐Ai Hospital, Medical Lo‐Hsu Foundation, I‐Lan, Taiwan;2. Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan;3. Department of Internal Medicine, National Taiwan University Hospital, Hsin‐Chu Branch, Hsin‐Chu, Taiwan;4. Center of Infection Control, National Taiwan University Hospital, Taipei, Taiwan |