1) Nakayachi K., “Anzen demo Anshin dekinai — Shinrai o meguru Shinrigaku,” Chikumashobo Ltd., Tokyo, 2008.
2) Pharmaceuticals and Medical Devices Agency: 〈http://www.info.pmda.go.jp/approvalSrch/PharmacySrchInit?〉, cited 30 April, 2011.
3) Pharmaceuticals and Medical Devices Agency: 〈http://www.pmda.go.jp/topics/h200417kohyo.html〉, cited 17 April, 2008.
4) Ministry of Health, Labour and Welfare: 〈http://www.pmda.go.jp/ich/m/step5_m3r2_10_02_19.pdf〉, Pharmaceuticals and Medical Devices Agency Web, cited 19 February, 2010.
5) Ministry of Health, Labour and Welfare: 〈http://www.pmda.go.jp/ich/s/S9_10_6_4.pdf〉, Pharmaceuticals and Medical Devices Agency Web, cited 4 June, 2010.