1. Ministry of Internal Affairs and Communications Population Statistics: population estimate 2020
2. The number of number of occupational therapists in Japan as of July 2021;Japanese Association of Occupational Therapists;Journal of the Japanese Association of Occupational Therapists,2021
3. WFOT Human Resources Project 2016;WFOT,2020
4. Ministry of Health, Labour and Welfare: Data from the 3rd meeting of the Subcommittee on Supply and Demand of Physical and Occupational Therapists of the Study Group on Supply and Demand of Medical Workers;Ministry of Health, Labour and Welfare,2019
5. Statistical data of the Japanese Association of Occupational Therapists in 2019;Japanese Association of Occupational Therapists;Journal of the Japanese Association of Occupational Therapists,2020