title: Phase II clinical trial of ftorafur in 5-fluorouracil-refractory colorectal cancer.
mesh_terms: D000328:Adult; D000368:Aged; D003110:Colonic Neoplasms / Q000188:drug therapy*; D004341:Drug Evaluation; D005260:Female; D005472:Fluorouracil / Q000031:analogs & derivatives* / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000188:drug therapy*; D005641:Tegafur / Q000627:therapeutic use*
chemical_list: D005641:Tegafur; D005472:Fluorouracil