Methotrexate therapy of advanced gastrointestinal malignancy.
D000368:Aged; D005770:Gastrointestinal Neoplasms / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000627:therapeutic use*; D008875:Middle Aged
D008727:Methotrexate