... ultrasonographicassessment of synovitis and joint vascularity with radiographicevaluation in a randomized, pla cebo- controll ed study of infliximabtherapy in early rheumatoid arthritis. A rthritis Rheum 2004,50:1107-1116.10. ... Putte van de LB: Validity of single variables and compositeindices for measuring disease activity in rheumatoid arthritis. Ann RheumDis 1992, 51:177-181.12. Felson DT, Anderson JJ, Boers M, ... effec-tiveness (Does it work in the community?) is somewhatdifferent from the idea of efficacy (Does it work in theclinical trial setting?). In addition, effectiveness impliessustained i mprovement in...