1. Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
2. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
3. Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts
4. Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China
5. Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
6. Lahey Clinic, Burlington, Massachusetts