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2. 2) <http://www.env.go.jp/nature/dobutsu/aigo/law_series/nt_h180428_88.html>, Standards Relating to the Care and Management of Laboratory Animals and Alleviation of Pain and Distress, 9 April, 2008.
3. 3) <http://wwwsoc.nii.ac.jp/jsaae/>, JSAAE Home page, 9 April, 2008.
4. 4) <http://ecvam.jrc.it/>, ECVAM Home page, 9 April, 2008.
5. 5) <http://iccvam.niehs.nih.gov/>, ICVAM Home page, 9 April, 2008.