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. 2022 Jan 27;14(1):98–118. doi: 10.4254/wjh.v14.i1.98

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©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/

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Immunohistochemistry of progressive familial intrahepatic cholestasis type 2 and 3. A: Normal liver showing canalicular bile salt exporter pump (BSEP) immunostaining; B: Faint BSEP immunostaining in a case of progressive familial intrahepatic cholestasis (PFIC2); C: Normal Liver showing canalicular multidrug resistant protein-3 (MDR3) immunostaining; D: Faint or absent MDR3 immunostaining in a case of PFIC3.