RT Journal Article SR Electronic T1 Towards clinical significance of the MUC5B promoter variant and risk of rheumatoid arthritis-associated interstitial lung disease JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 1503 OP 1504 DO 10.1136/annrheumdis-2021-220856 VO 80 IS 12 A1 Jeffrey A Sparks YR 2021 UL http://ard.bmj.com/content/80/12/1503.abstract AB