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. 2022 Dec 13;13:1070994. doi: 10.3389/fimmu.2022.1070994

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Copyright © 2022 Haunhorst, Bloch, Javelle, Krüger, Baumgart, Drube, Lemhöfer, Reuken, Stallmach, Müller, Zielinski, Pletz, Gabriel and Puta

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Commonly suggested theories for the non-exclusive pathophysiological mechanisms involved in Long COVID (1–4) and how they might be related to Treg dysregulation (created with BioRender.com). GPCR, G-protein coupled receptor.