Development of a standardized method of assessment of radiographs and radiographic change in juvenile idiopathic arthritis. - van Rossum MAJ; Boers M; Zwinderman AH; van Soesbergen RM; Wieringa H; Fiselier TJW; Franssen MJA; ten Cate R; van Suijlekom-Smit LWA; Wulffraat NM; van Luijk WHJ; Oostveen JCM; et al. (Arthritis & Rheumatism, 2005)