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http://www.japantimes.co.jp/news/2016/09/14/national/science-health/medical-expenses-rise-record-%C2%A541-trillion-japan-ages/#.V93OSYVOI2w
. Accessed 18 Sept 2016.
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https://www.cihi.ca/en/nhex_2014_report_en.pdf#search=‘Canadian+medical+expenditure’
. Accessed 19 Aug 2016.
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https://esa.un.org/unpd/wpp/
. Accessed 19 Aug 2016.
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http://www.jga.gr.jp/english/country-overview/genric-share-by-mhlw/
. Accessed 25 Sept 2016.
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http://www.mhlw.go.jp/file/06-Seisakujouhou-10800000-Iseikyoku/0000114903.pdf
. Accessed 19 Aug 2016. (in Japanese).