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View full-text article in PMC

. 2009 Dec 11;9:434. doi: 10.1186/1471-2407-9-434

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Copyright ©2009 Petty 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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Hierarchical cluster analysis of chemoradiotherapy or radiotherapy treated tumours. This analysis separates pre- and post-treatment biopsies using (a) 86 genes identified as changed in chemoradiotherapy treated patients and (b) 51 genes identified as changed in short course radiotherapy treated patients. (c) Post-treatment tumour biopsies, cluster according to treatment received with the combined set of 137 genes, but (d) pre-treatment tumour biopsies do not. Columns represent tumour samples and rows represent genes (red: up-regulated and green: down-regulated, radiotherapy [blue] or chemoradiotherapy [pink]).