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. 2019 Sep 18;14:171. doi: 10.1186/s13014-019-1371-4

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 2 — Impact of pre-PCI BM and CRT duration on survival. Kaplan-Meier curves of overall survival (OS) based on (a) pre-PCI brain metastasis (BM) and (b) CRT duration (CRT-D, 4.1 months or longer versus 4.0 months or shorter). The bottom numbers indicate patients at risk at different time points