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http://www8.cao.go.jp/kourei/whitepaper/w-2016/zenbun/pdf/1s1s_1.pdf
Accessed 12 Dec, 2016.
2. Arai H, Ouchi Y, Toba K, Endo T, Shimokado K, Tsubota K, et al. Japan as the front-runner of super-aged societies: perspectives from medicine and medical care in Japan. Geriatr Gerontol Int. 2015;15(6):673–87.
3. Ministry of Health, Labour and Welfare. Annual Report on the Long-term Care Insurance. 2013.
http://www.mhlw.go.jp/topics/kaigo/osirase/jigyo/13/dl/h25_point.pdf
Accessed 12 Dec, 2016.
4. Ministry of Health, Labour and Welfare. Current State and Trends on the Elderly and their Environment. 2015.
http://www8.cao.go.jp/kourei/english/annualreport/2015/pdf/c1-2-1.pdf
Accessed 12 Dec 2016.
5. Ministry of Health, Labour and Welfare. Comprehensive Survey of Living Conditions. Table 16. (in Japanese) 2010.
http://www.e-stat.go.jp/SG1/estat/List.do?lid=000001083953
Accessed 12 Dec. 2016.