RT Journal Article SR Electronic T1 Smoking, rheumatoid factor status and responses to rituximab JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 1587 OP 1588 DO 10.1136/annrheumdis-2012-201758 VO 71 IS 9 A1 Abdul Khan A1 David Lloyd Scott A1 Mike Batley YR 2012 UL http://ard.bmj.com/content/71/9/1587.abstract AB