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. 2016 Oct 18;9:111. doi: 10.1186/s13045-016-0340-8

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© The Author(s). 2016

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. 3 — Forest plot and pooled HR and 95 % CI for OS (a) and PFS (b): anti-angiogenesis therapy versus non-anti-angiogenesis therapy. The pooled HR for OS and PFS showed that the patients receiving anti-angiogenesis therapy possessed a significant improvement in OS and PFS. HR hazard ratios, OS overall survival, PFS progression-free survival, CI confidence intervals