*[http://radiographics.rsnajnls.org/cgi/content/full/24/6/1679 Barrett,J., Keat, N.: Artifacts in CT: Recognition and Avoidance.] in RadioGraphics, 24, 1679-1691. November 2004 | *[http://radiographics.rsnajnls.org/cgi/content/full/24/6/1679 Barrett,J., Keat, N.: Artifacts in CT: Recognition and Avoidance.] in RadioGraphics, 24, 1679-1691. November 2004 |