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. 2022 Aug 12;13:941663. doi: 10.3389/fimmu.2022.941663

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Copyright © 2022 Lavis, Morra, Orte Cano, Albayrak, Corbière, Olislagers, Dauby, Del Marmol, Marchant, Decaestecker, Mascart, De Vos, Van de Borne, Salmon, Remmelink, Parmentier, Cardozo and Bondue

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Immunohistochemistry staining of ChemR23 on lung slides from autopsied COVID-19 patients and controls (autopsied patient without major pulmonary lesion (control) and patient with ARDS from another origin (ARDS other)). (A–C). Representative staining of smooth muscle cells from arteries and bronchia. Field magnification 100x. Scale bar: 100µm. (D–F). Representative staining of endothelial cells (black arrows). Field magnification 400x. Scale bar: 50µm. (G). Representative image from area of acute pneumonia in COVID-19 patients, without ChemR23 staining. Field magnification 400x. Scale bar: 50µm.