title: Folate supplementation and methotrexate.
authors: S L
authors: SL
authors: Morgan
authors: J E
authors: JE
authors: Baggott
authors: W J
authors: WJ
authors: Koopman
authors: C L
authors: CL
authors: Krumdieck
authors: G S
authors: GS
authors: Alarcón
mesh_terms: D001172:Arthritis, Rheumatoid / Q000188:drug therapy* / Q000276:immunology; D005492:Folic Acid / Q000627:therapeutic use*; D006801:Humans; D007108:Immune Tolerance / Q000187:drug effects; D008727:Methotrexate / Q000009:adverse effects*
chemical_list: D005492:Folic Acid; D008727:Methotrexate