1. Abe, A. K. (2003). Low-incom people in social security systems in Japan. Japanese Journal of Social Security Policy, 2(2), 59–70.
2. Abe, A. K. (2012). Poverty and social exclusion of women in Japan. Japanese Journal of Social Security Policy, 29(1), 61–82.
3. Act on General Rules for Incorporated Administrative Agencies (1999). Retrieved from the Japanese Law Translation Database System website: http://www.japaneselawtranslation.go.jp/law/detail/?id=2361&vm=&re=&new=1 , 10 April 2016.
4. Bureau of Insurance, Ministry of Health, Labour and Wealth (2015). Report on benefits of Health Care for the Old. Tokyo: Ministry of Health, Labour and Wealth, Retrieved from http://www.mhlw.go.jp/stf/seisakunitsuite/bunya/kenkou_iryou/iryouhoken/juuyou/kougakuiryou/index.html?utm_source=echofon , 10 April 2016.
5. Central Social Insurance Medical Council (2009). Selected reports on designated Services for Extra Charges (Omona Sentei Ryoyo ni Kakawaru Houkoku Johkyo), reported to the Central Social Insurance Medical Council on 25 march, 2009. Tokyo: Central Social Insurance Medical Council.