Severe neurological complications in critically ill COVID-19 patients - Notz, Quirin; Lotz, Christopher; Herrmann, Johannes; Vogt, Marius; Schlesinger, Tobias; Kredel, Markus; Muellges, Wolfgang; Weismann, Dirk; Westermaier, Thomas; Meybohm, Patrick; Kranke, Peter (Journal of neurology, 2021)