1. Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
2. Chaum Life Center, CHA Bundang Medical Center, School of Medicine, CHA University, Seoul, Republic of Korea
3. Department of Microbiology and Immunology, Brain Korea 21 Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Korea
4. Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, Korea