1) http://www.radiologyinfo.org/en/safety/index.cfm?pg=sfty_xray
2) 日本アイソトープ協会編. ICRP publication 84 妊娠と医療放射線. 東京 : 丸善 ; 2003.
4) http://pedrad.org/associations/5364/ig/
6) https://rpop.iaea.org/RPOP/RPoP/Content/News/smart-cardproject.htm
7) http://japan.gehealthcare.com/cwcjapan/static/company/press/2011/08.html