PT - JOURNAL ARTICLE AU - Timothée Klopfenstein AU - Vincent Gendrin AU - Thierry Conrozier AU - Aurélie Gerazime AU - Marc Puyraveau AU - Souheil Zayet TI - 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’ AID - 10.1136/annrheumdis-2021-220771 DP - 2021 Jun 22 TA - Annals of the Rheumatic Diseases PG - annrheumdis-2021-220771 4099 - http://ard.bmj.com/content/early/2021/06/23/annrheumdis-2021-220771.short 4100 - http://ard.bmj.com/content/early/2021/06/23/annrheumdis-2021-220771.full