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. 2013 Mar 5;8:48. doi: 10.1186/1748-717X-8-48

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Copyright ©2013 Toramatsu et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Cumulative dose-volume histograms (cDVH) of normal liver for IMRT plans (solid line) and SSPT plans (dashed line). (a) cDVH for patients with nominal diameter of GTV (a) 5.1 cm, (b) 7.8 cm and (c) 16.1 cm. Triangles in each figure were dose constrains for one-third and for two-thirds of the volume of the normal liver.