Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleTechnical Note: Extension of van Herk's treatment margin model for anisotropic systematic positioning errors in Cartesian coordinate system.AuthorsYoda, Kiyoshi; Nakagawa, KeiichiPublicationMedical Physics, 2011, Vol 38, Issue 7, p3913ISSN0094-2405Publication typeArticleDOI10.1118/1.3596531