1. Department of Medicine and Clinical Science (M.K., J.W., K.S., A.N., S.T., K.M., K.I., T.T., A.K., J.E., H.M.), Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan
2. Department of Immunology (H.A., H.Y.), Juntendo University School of Medicine, Tokyo 113-8421, Japan