Clinical trials in rheumatoid arthritis: methodological suggestions for assessing radiographs arising from the GRISAR study
R Ferrara, F Priolo, M Cammisa, L Bacarini, A Cerase, G Pasero, G F Ferraccioli, O Della Casa Alberighi, A Antonellini, E Marubini
Annals of the Rheumatic Diseases Oct 1997, 56 (10) 608-612; DOI: 10.1136/ard.56.10.608