Fig. 1From: Methotrexate polyglutamates as a potential marker of adherence to long-term therapy in children with juvenile idiopathic arthritis and juvenile dermatomyositis: an observational, cross-sectional studyEffect of administered dose (a), route of administration (b) and patient age (c) on the distribution of methotrexate (MTX) polyglutamates in children receiving long-term MTX therapyBack to article page