Affiliation: | 1. Office for Infection Control, Asan Medical Center, Seoul, Republic of Korea;2. University of Ulsan College of Medicine, Seoul, Republic of Korea;3. Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea;4. Department of Infectious Diseases, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea |