TY - JOUR T1 - Are the number of joints involved or the presence of psoriasis still useful tools to identify homogeneous disease entities in juvenile idiopathic arthritis? JF - The Journal of Rheumatology JO - J Rheumatol SP - 1900 LP - 1903 VL - 30 IS - 9 AU - Alberto Martini Y1 - 2003/09/01 UR - http://www.jrheum.org/content/30/9/1900.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -