1. Department of Emergency Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea;
2. Department of Laboratory Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea;
3. Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea;
4. Department of Microbiology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea