1. Department of Oral Health Science, School of Dentistry, University of Washington
2. Section of Geriatric Dentistry, Department of General Dentistry, Fukuoka Dental College
3. Section of Geriatric Dentistry and Perioperative Medicine in Dentistry, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University
4. OBT Research Center, Faculty of Dental Science, Kyushu University
5. Private Practice