1. Sungkyun Biotech Co., Ltd., Suwon, Korea
2. G&P Bioscience Co. LTD., Goyang, Korea
3. Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
4. Department of Microbiology and Immunology, Seoul National University College of Medicine, Seoul, Korea
5. Department of Family Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea