Affiliation: | a Division of Bacteriology, Department of Infectious Disease Control, International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan b Oral Frontier Biology, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871, Japan c Pediatric Dentistry, Osaka University Graduate School of Dentistry, Suita-Osaka 565-0871, Japan d Advanced Research Institute for the Sciences and Humanities, Nihon University, 6F Ichigaya Tokyu Building, 2-1 Kudan-kita 4-chome, Chiyoda-ku, Tokyo 102-0073, Japan |