1. 1) Ministry of Health, Labour and Welfare: 〈http://www.mhlw.go.jp/topics/medias/year/11/〉, cited 5 July, 2013.
2. 2) Ministry of Health, Labour and Welfare: 〈http://www.mhlw.go.jp/topics/medias/year/11/gaiyou.html〉, cited 5 July 2013.
3. 3) Ministry of Health, Labour and Welfare: 〈http://www.mhlw.go.jp/seisaku/2012/03/01.html〉, cited 28 May, 2013.
4. 4) Pfizer Japan Inc. “Shohouyakuno Nominokoshini kansuru Ishiki/Jittai Chousa.”: 〈http://www.pfizer.co.jp/pfizer/company/press/2012/2012_11_13.html〉, cited 15 May, 2013.
5. 5) Japan Pharmaceutical Association. “Koukikoureishano Fukuyouniokerumondai to Yakuzaishino Zaitakuhoumonyakuzaikanrishidou narabini Kyotakukanrishidouno Koukanikansuru Chousakenkyu.”: 〈http://www.nichiyaku.or.jp/action/wp-content/uploads/2008/06/19kourei_hukuyaku1.pdf〉, cited 15 May, 2013.