1. Department of Laboratory Medicine, Korea University College of Medicine, Korea University Anam Hospital, Seoul, South Korea
2. Gyeryong City Health, Gyeryong-si, Chungcheongnam-do, South Korea
3. Department of Laboratory Medicine, Korea University Anam Hospital, Seoul, South Korea
4. Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Korea University Anam Hospital, Seoul, South Korea