1. Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata Japan
2. Laboratory for Intestinal Ecosystem, RIKEN Centre for Integrative Medical Sciences (IMS), Kanagawa Japan
3. Laboratory of Mucosal Ecosystem Design, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma Japan
4. Immunobiology Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa Japan
5. Laboratory for Microbiome Sciences, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan