title: Metastatic colorectal cancer. Combination chemotherapy in patients previously treated with 5-fluorouracil.
mesh_terms: D000328:Adult; D000368:Aged; D003110:Colonic Neoplasms / Q000556:secondary*; D004359:Drug Therapy, Combination; D005260:Female; D005472:Fluorouracil / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009607:Nitrosourea Compounds / Q000627:therapeutic use*; D012004:Rectal Neoplasms / Q000556:secondary*; D012673:Semustine / Q000627:therapeutic use*
chemical_list: D009607:Nitrosourea Compounds; D012673:Semustine; D005472:Fluorouracil