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. 2020 Jan 4;301(3):707–714. doi: 10.1007/s00404-019-05429-w

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© The Author(s) 2019

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Abnormal EMT and TGF-β1/SMAD2 signalling pathway-related molecule expression were observed in endometriosis. a, b Immunohistochemical analysis of the expression of TGF-β1, SMAD2, vimentin and E-cadherin in ectopic and eutopic endometria isolated from endometriosis and normal endometrial tissue, respectively. HSCORES are expressed as mean ± SEM. c, d The protein expression levels of TGF-β1, SMAD2, p-SMAD2, vimentin and E-cadherin among the three tissue samples were determined by western blot analysis. *P < 0.05, **P < 0.01, ***P < 0.001 and NS non-significant