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. 2023 Feb 10;102(6):e32882. doi: 10.1097/MD.0000000000032882

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Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal.

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Figure 1. — Representative examples of human epidermal growth factor receptor-2 (HER-2) protein. (A) A pancreatic adenocarcinoma. (B) Pancreatic adenocarcinoma did not show expression of the HER-2 protein (score 0). (C) Breast carcinoma used as external control showed expression with HER-2 protein (score 3). (D) Pancreatic adenocarcinoma showed weak expression with HER-2 protein (score 1). (A) HE ×100; (B–D) HER-2 DAB ×100. DAB = 3,3′-diaminobenzidine, HE = hematoxylin eosin.