CytoResc – "CytoSorb" Rescue for critically ill patients undergoing the COVID-19 Cytokine Storm a structured summary of a study protocol for a randomized controlled trial - Stockmann, Helena; Keller, Theresa; Büttner, Stefan; Jörres, Achim; Kindgen-Milles, Detlef; Kunz, Julius Valentin; Leebmann, Josef; Spies, Claudia; Träger, Karl; Treskatsch, Sascha; Uhrig, Alexander; Willam, Carsten; et al. (Friedrich-Alexander-Universität Erlangen-Nürnberg, 2020)