RT Journal Article SR Electronic T1 Role of antimalarials in COVID-19: observational data from a cohort of rheumatic patients JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP annrheumdis-2020-218068 DO 10.1136/annrheumdis-2020-218068 A1 Ennio Giulio Favalli A1 Orazio De Lucia A1 Martina Biggioggero A1 Nicoletta Del Papa A1 Roberto Caporali YR 2020 UL http://ard.bmj.com/content/early/2020/06/18/annrheumdis-2020-218068.abstract AB