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 oleh Helena Stockmann, Theresa Keller, Stefan Büttner, Achim Jörres, Detlef Kindgen-Milles, Julius Valentin Kunz, Josef Leebmann, Claudia Spies, Karl Träger, Sascha Treskatsch, Alexander Uhrig, Carsten Willam, Philipp Enghard, Torsten Slowinski, for the CytoResc Trial Investigators