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. 2018 Sep 18;17(16):2027–2040. doi: 10.1080/15384101.2018.1511510

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© 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.

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Figure 1. — Heterogeneous expression of ErbB2 in breast cancers specimens determined by immunohistochemistry (IHC).

IHC staining of breast cancer tissues for ErbB2 protein expression. Brown staining shows positive staining of ErbB2. In the same observed field, ErbB2-negative breast cancer cells are also present.