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. 2015 Mar 30;10:72. doi: 10.1186/s13014-015-0384-x

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© Madani et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Dose distributions in the axial plane of the intensity-modulated proton-beam therapy (IMPT) and photon intensity-modulated radiation therapy (IMRT) plans for the same patient. The union planning target volume (PTV_union) minus the PET-based PTV is in light green (IMPT) and in blue (IMRT).