1. Research Unit for Oral-Systemic Connection; Division of Oral Science for Health Promotion; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
2. Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
3. Laboratory for Intestinal Ecosystem; RCAI RIKEN Center for Integrative Medical Sciences (IMS-RCAI); Yokohama Japan