1. Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea;
2. Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea;
3. Department of Laboratory Medicine, Jincheon Sungmo Hospital, Jincheon, Republic of Korea;
4. Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Republic of Korea;
5. Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Republic of Korea;
6. Department of Health Insurance Research, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea