Fig. 1From: Cytokine adsorption in patients with severe COVID-19 pneumonia requiring extracorporeal membrane oxygenationIL-6 levels within the first 72 h after onset of vv-ECMO in 8 patients. Four patients received vv-ECMO without cytokine adsorption (red), and 4 patients vv-ECMO with cytokine adsorption (blue). Data are presented as mean ± SEMBack to article page