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. 2015 Jan 9;14(Suppl 1):S11. doi: 10.1186/1475-925X-14-S1-S11

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Copyright © 2015 Ren 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/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 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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The VFR change of PCAs for the eight models with different degrees of stenosis located in the ICAR. (a) Contralateral PCA (PCAL). (b) Ipsilateral PCA (PCAR). (For the meaning of the different colors, please refer to the online version).