Jacobs, J.W.G.

reliability study patient observer variance arthritis article heterogeneity cheung measure disease activity activity score 3 patients equation agreement correlation disease ϩ variance synoviti reliability ” ostergaard m value intraclas arthritis care flammatory activity reliability testing methodology multicentre reliability study statistic center consistency interpretation dif ficult outcome disease activity scores 1 2 3 netherland icc ϭ variance van der heijde ultrasonography shore hospital sydney ficient arthritis care res center utrecht utrecht imaging investigation show signs review intraobserver reading reliability cochin hospital paris rheumatology future reliability studies university equation states resonance imaging phd erasmus richi p rater reliability phd j speci fically reliability studies reliability statistic intraclass correlations shnier r dougados m research vol ra-mri score palop mj power doppler study designs use agreement letters heterogeneity netherlands r netherlands j literature review dif ficult trials article phd university hermann kg reliability measures lassere m image-acquisition reliability