title: Methotrexate as a possible trigger of macrophage activation syndrome in systemic juvenile idiopathic arthritis.
authors.forename: Ruth
authors.initials: R
authors.lastname: Eraso
authors.forename: Abraham
authors.initials: A
authors.lastname: Gedalia
authors.forename: Luis R
authors.initials: LR
authors.lastname: Espinoza
mesh_terms: D018501:Antirheumatic Agents / Q000009:adverse effects*; D001171:Arthritis, Juvenile / Q000188:drug therapy* / Q000276:immunology*; D006801:Humans; D008262:Macrophage Activation / Q000187:drug effects*; D008727:Methotrexate / Q000009:adverse effects*
chemical_list: D018501:Antirheumatic Agents; D008727:Methotrexate