Kyushu Dental University, Kitasato University - School of Medicine, University of Tokyo - Human Genome Center, Kitasato University - School of Medicine, Kitasato University - School of Medicine, Tokyo Women's Medical University - Institute of Advanced Biomedical Engineering and Science, Kyushu Dental University, Kitasato University - School of Medicine, University of Tokyo - Human Genome Center, Kyushu Dental University and Tokyo Medical and Dental University - Department of Periodontology