RT Journal Article SR Electronic T1 Correspondence on ‘Clinical course of coronavirus disease 2019 (COVID-19) in a series of 17 patients with systemic lupus under long-term treatment with hydroxychloroquine’ JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP e33 OP e33 DO 10.1136/annrheumdis-2020-217827 VO 80 IS 3 A1 Mandana Nikpour A1 Benjamin Teh A1 Ian P Wicks A1 Marc Pellegrini YR 2021 UL http://ard.bmj.com/content/80/3/e33.abstract AB