title: Methotrexate: a perspective on its use for rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000097:blood / Q000188:drug therapy*; D006801:Humans; D007962:Leukocytes / Q000502:physiology; D008727:Methotrexate / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D008727:Methotrexate