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. 2021 Sep 15;11(9):712. doi: 10.3390/membranes11090712

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Exemplary images of the immunohistochemical detection of anti-inflammatory M2 macrophages within the bed implants of the different barrier membranes and the sham operation group at three time points: 10 days, 30 days, and 60 days. First column: Ossix^® Plus (OP) (A–C), second column: Bio-Gide^® (BG) (D–F), third column: Jason^® membrane (JM) (G–I), and forth column: sham operation (SO) (J–M). CT: connective tissue, M: membrane, W: wound area, black arrows: CD163-positive cells (CD163-immunostainings, 20× objective magnifications and scalebars = 50 µm).