title: Therapy for gastrointestinal cancer with the nitrosoureas alone and in drug combination.
mesh_terms: D004359:Drug Therapy, Combination; D005472:Fluorouracil / Q000627:therapeutic use; D005770:Gastrointestinal Neoplasms / Q000188:drug therapy*; D006801:Humans; D008130:Lomustine / Q000627:therapeutic use; D009607:Nitrosourea Compounds / Q000627:therapeutic use*; D012673:Semustine / Q000627:therapeutic use; D014750:Vincristine / Q000627:therapeutic use
chemical_list: D009607:Nitrosourea Compounds; D012673:Semustine; D014750:Vincristine; D008130:Lomustine; D005472:Fluorouracil