Predictors of poor response to methotrexate in polyarticular-course juvenile idiopathic arthritis: analysis of the PRINTO methotrexate trial
Iris Vilca, Pablo Garcia Munitis, Angela Pistorio, Angelo Ravelli, Antonella Buoncompagni, Blanca Bica, Lucia Campos, Renate Häfner, Michael Hofer, Seza Ozen, Christian Huemer, Sang Cheol Bae, Flavio Sztajnbok, Olga Arguedas, Ivan Foeldvari, Hans Iko Huppertz, Maria Luz Gamir, Bo Magnusson, Frank Dressler, Yosef Uziel, Marion A J van Rossum, Peter Hollingworth, Gail Cawkwell, Alberto Martini, Nicolino Ruperto, for the Pediatric Rheumatology International Trials Organisation (PRINTO)
Annals of the Rheumatic Diseases Aug 2010, 69 (8) 1479-1483; DOI: 10.1136/ard.2009.120840