RT Journal Article SR Electronic T1 SARS CoV-2 infection among patients using immunomodulatory therapies JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 269 OP 271 DO 10.1136/annrheumdis-2020-218580 VO 80 IS 2 A1 Kevin L Winthrop A1 Amanda E Brunton A1 Susan Beekmann A1 Philip Polgreen A1 John Baddley A1 Kenneth G Saag A1 Cassandra Calabrese A1 Leonard Calabrese A1 Philip C Robinson A1 Zachary S Wallace A1 Jeffrey R Curtis A1 , YR 2021 UL http://ard.bmj.com/content/80/2/269.abstract AB