1. Departments of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Korea
2. Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
3. Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
4. Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University College of Medicine, Seoul, Korea