1. Institute of Global Affairs, Tokyo Medical and Dental University (TMDU)
2. Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, TMDU
3. Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University
4. Department of General Dentistry, Graduate School of Medical and Dental Sciences, TMDU
5. Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University
6. Department of Conservative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-University Munich