主な研究業績 (論文、著書) |
- Oozawa K, Okawa Y, Hirata S, Tashiro M, Taniguchi K:Professional dental care provision systems for persons with disabilities by prefecture in Japan, Community Dent Health. 38(3), 182-186,2021.
- Okawa Y, Hirata S. Geographic distribution of dental specialists permitted to advertise dental practices in Japan. Community Dent Health 36(1), 241-244,2019.
- Okawa Y, Hirata S. Trends in the geographic distribution of dental clinics in Japan. Community Dent Health 31(1), 62-64,2014.
- Okawa Y, Hirata S, Sueishi K, Ishii T. Geographic distribution of specialist orthodontists and orthodontic providers in Japan. Orthodontic Waves 72(3), 127-133,2013.
- Okawa Y, Hirata S, Okada M, Ishii T Geographic distribution of dentists in Japan: 1980-2000.J Public Health Dent 71(3), 236-240,2011.
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