| Affiliation: | 1. Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea;2. Department of Biostatistics, Korea University College of Medicine, Seoul, Korea;3. Division of Infectious Diseases, Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea;4. Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea;5. Division of Infectious Diseases and Infection Control Unit, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea |
