MUC5B Promoter Variant and Rheumatoid Arthritis with Interstitial Lung Disease. Juge PA, Lee JS, Ebstein E, et al. MUC5B Promoter Variant and Rheumatoid Arthritis with Interstitial Lung Disease. N Engl J Med. 2018;379(23):2209-2219. doi:10.1056/NEJMoa1801562 Read more