RT Journal Article SR Electronic T1 Minimal clinically important difference module: summary, recommendations, and research agenda. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 452 OP 454 VO 28 IS 2 A1 Wells, G A1 Anderson, J A1 Beaton, D A1 Bellamy, N A1 Boers, M A1 Bombardier, C A1 Breedveld, F A1 Carr, A A1 Cranney, A A1 Dougados, M A1 Felson, D A1 Kirwan, J A1 Schiff, M A1 Shea, B A1 Simon, L A1 Smolen, J A1 Strand, V A1 Tugwell, P A1 van Riel, P A1 Welch, V A YR 2001 UL http://www.jrheum.org/content/28/2/452.abstract AB