RT Journal Article SR Electronic T1 Response to : ‘Interleukin-4 as a emerging target for IgG4-related disease’ by Akiyama et al JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP e29 OP e29 DO 10.1136/annrheumdis-2020-216977 VO 81 IS 2 A1 Rachel S Simpson A1 Jason K Lee YR 2022 UL http://ard.bmj.com/content/81/2/e29.abstract AB