Affiliation: | 1 Department of Immunology, Tokai University School of Medicine, Boseidai, Isehara, Kanagawa 259-1193, Japan 2 Department of Molecular Immunology, Institute of Development, Aging and Cancer, Tohoku University, Seiryo-machi, Aobaku, Sendai, Japan 3 Department of Immunology, Juntendo University School of Medicine, Hongo, Bunkyo-ku, Tokyo, Japan |