title: Methotrexate in the treatment of rheumatoid arthritis; pilot study.
mesh_terms: D000284:Administration, Oral; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D008875:Middle Aged
chemical_list: D008727:Methotrexate