1. Division of Biomimetics, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
2. Division of Periodontology, Department of Oral Biological Science, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
3. Center for Transdisciplinary Research, Institute for Research Promotion, Niigata University, Niigata, Japan
4. Department of Management and Information Sciences, Faculty of Environmental and Information Sciences, Fukui University of Technology, Fukui, Japan
5. Department of Stem Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan