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. 2014 Nov 3;14:797. doi: 10.1186/1471-2407-14-797

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© Qiu et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. 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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CT simulation images of a patient with rT2N0M0 NPC. A: Transverse CT simulation images at the levels of superior levels of the nasopharynx illustrating target volumes, normal structures and isodose lines showing doses per fraction. B and C: Coronal (B) and Sagittal (C) CT simulation images illustrating target volumes, normal structures and isodose lines showing doses per fraction.