RT Journal Article SR Electronic T1 RAID: a valid tool to quantify the impact of rheumatoid arthritis. But what impact will it have on the core set for trials? JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 884 OP 885 DO 10.1136/ard.2010.145375 VO 70 IS 6 A1 Boers, Maarten YR 2011 UL http://ard.bmj.com/content/70/6/884.abstract AB