Circulating Adaptive Immune Cells Expressing the Gut Homing Marker α4β7 Integrin Are Decreased in COVID-19 - Müller, Tanja M.; Becker, Emily; Wiendl, Maximilian; Schulze, Lisa Lou; Voskens, Caroline; Völkl, Simon; Kremer, Andreas E.; Neurath, Markus F.; Zundler, Sebastian (Friedrich-Alexander-Universität Erlangen-Nürnberg, 2021)