Department of Geriatric Dentistry, Showa University School of Dentistry

Department of Oral Health Promotion, Graduate School of Oral Medicine, Matsumoto Dental University

Division of Dental Risk Management, Kyushu Dental University

Division of Geriatric Dentistry, School of Dentistry, Health Sciences University of Hokkaido

Niigata University Medical and Dental Hospital

Department of Oral Health Sciences, School of Health Sciences, Meikai University

Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University

Department of Prosthetic Dentistry, Nagasaki University Graduate School of Biomedical Sciences

Department of Special Care Dentistry, Hiroshima University Hospital