title: [Methotrexate in the treatment of rheumatoid arthritis].
authors.forename: J L
authors.initials: JL
authors.lastname: Yang
mesh_terms: D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D006801:Humans; D008727:Methotrexate / Q000627:therapeutic use*
chemical_list: D008727:Methotrexate