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Changes in the serum levels of IL-6, soluble IL-6 receptor, and soluble gp130 before and after tocilizumab administration. The serum levels of IL-6, soluble IL-6 receptor (sIL-6R), and soluble gp130 (sgp130) in 10 patients with COVID-19 before and after tocilizumab administration were measured using a multiplex cytokine array system. The red line represents the data of patients requiring mechanical ventilation.
