Predictors of poor outcome in tocilizumab treated patients with Sars-CoV-2 related severe respiratory failure: A multicentre real world study. - Masotti L; Landini G; Panigada G; Grifoni E; Tarquini R; Cei F; Cimolato BMA; Vannucchi V; Di Pietro M; Piani F; Fortini A; Faraone A; et al. (International immunopharmacology, 2022)