On April 3, 2018, Professor Prasert Assantachai, Deputy Dean and Head of Division of Geriatric Medicine, Department of Preventive and Social Medicine and the group from Institute of Geriatric Medicine, Department of Medical Services, Ministry of Public Health paid a visit to National Center for Geriatric and Gerontology, Obu, Japan. The group received a very warm welcome by Professor Hidenori Arai, Director of Center for Gerontology and Social Science and Professor Hidetochi Endo, Director of Department of Comprehensive Geriatric Medicine, NCGG.