RT Journal Article SR Electronic T1 Correspondence on ‘Historically controlled comparison of glucocorticoids with or without tocilizumab versus supportive care only in patients with COVID-19-associated cytokine storm syndrome: results of the CHIC study’ JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP e111 OP e111 DO 10.1136/annrheumdis-2021-220044 VO 82 IS 5 A1 Maria De Santis A1 Antonio Voza A1 Victor Savevski A1 Salvatore Badalamenti A1 Maurizio Cecconi A1 Alberto Mantovani A1 Carlo Selmi YR 2023 UL http://ard.bmj.com/content/82/5/e111.abstract AB