Barral Mena, Estefanía [Methotrexate in juvenile idiopathic arthritis. Adverse effects and associated factors]. [electronic resource] - Anales de pediatria Mar 2020 - 124-131 p. digital Publication Type: Journal Article; Observational Study ISSN: 2341-2879 Standard No.: 10.1016/j.anpedi.2019.05.010 doi Subjects--Topical Terms: Antirheumatic Agents--adverse effectsArthritis, Juvenile--drug therapyChildChild, PreschoolFemaleHumansMaleMethotrexate--adverse effectsRetrospective Studies