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. 2017 Oct 10;42(2):490–497. doi: 10.1007/s00268-017-4278-y

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© The Author(s) 2017

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 use, duplication, adaptation, distribution and reproduction in any medium or format, as long as 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.

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Fig. 1 — Overall survival of patients with different tumor grades. a Overall patient population. b Patient with metastatic disease