1. Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
2. Department of Fixed Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
3. Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University
4. KU Leuven , Department of Oral Health Sciences, BIOMAT & UZ Leuven , Dentistry, Belgium Department of Advanced Prosthodontics, Division of Dental Sciences, Hiroshima University
5. Department of National Institute of Advanced Industrial Science and Technology (AIST),Department of Pathology & Experimental Medicine,Graduate School of Medicine, Okayama University
6. KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT & UZ Leuven (University Hospitals Leuven), Dentistry