1. 1. Japan Perspective, Science Council Japan, Tokyo, 2002.
2. 2. Japan's 21st Century Vision, Cabinet office, The Government of Japan, Tokyo, 2005.
3. 3. Healthy long life expectancy created by sound occlusion and mastication, National Committee for Sciences of Oral Function, Science Council of Japan, Tokyo, 2004.
4. 4. Report on the Survey of Dental Disease (1987), Health Policy Bureau Ministry of Health and Welfare Japan, Tokyo, Oral Health Association of Japan, 1987.
5. 5. Report on the Survey of Dental Disease (1993), Health Policy Bureau Ministry of Health and Welfare Japan, Tokyo, Oral Health Association of Japan, 1993.