RT Journal Article SR Electronic T1 The importance of patient participation in measuring rheumatoid arthritis flares JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 1107 OP 1109 DO 10.1136/annrheumdis-2011-200870 VO 71 IS 7 A1 Bingham, Clifton O A1 Alten, Rieke A1 de Wit, Maarten P YR 2012 UL http://ard.bmj.com/content/71/7/1107.abstract AB