RT Journal Article SR Electronic T1 Immunogenicity of the COVID-19 mRNA vaccine in adolescents with juvenile idiopathic arthritis on treatment with TNF inhibitors JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 592 OP 593 DO 10.1136/annrheumdis-2021-221607 VO 81 IS 4 A1 Dimitra Dimopoulou A1 George Vartzelis A1 Foteini Dasoula A1 Maria Tsolia A1 Despoina Maritsi YR 2022 UL http://ard.bmj.com/content/81/4/592.abstract AB