FluorouracilLeucovorinAntimetabolites, AntineoplasticColonic NeoplasmsAntineoplastic Combined Chemotherapy ProtocolsDihydrouracil Dehydrogenase (NADP)Organoplatinum CompoundsColorectal NeoplasmsDrug Administration ScheduleColon, DescendingThymidylate SynthaseCisplatinAdenocarcinomaInfusions, IntravenousCamptothecinMethotrexateUracilChemotherapy, AdjuvantFloxuridineEpirubicinFluorodeoxyuridylateCombined Modality TherapyTreatment OutcomeRectal NeoplasmsCyclophosphamideTegafurMitomycinColon, SigmoidAntimetabolitesSurvival AnalysisAntineoplastic AgentsDisease-Free SurvivalSemustineStomach NeoplasmsColon, AscendingLevamisoleDoxorubicinNeoplasm MetastasisDeoxycytidineHT29 CellsBreast NeoplasmsSurvival RateLiver NeoplasmsDose-Response Relationship, DrugInfusions, Intra-ArterialDrug SynergismColon, TransverseStomatitisCell Line, TumorNeoplasm StagingLevoleucovorinAntidotesBromouracilFlucytosineProdrugsTaxoidsChronotherapyCarcinoma, Squamous CellDrug Resistance, NeoplasmEsophageal NeoplasmsHead and Neck NeoplasmsPhosphoribosyl PyrophosphateLeukopeniaTumor Cells, CulturedMucositisNeutropeniaCytosine DeaminaseNeoadjuvant TherapyPancreatic NeoplasmsThymidine PhosphorylaseNeoplasm Recurrence, LocalInjections, IntravenousCarcinomaDrug EvaluationIntestinal MucosaTime FactorsOxonic AcidHepatic ArteryNauseaDihydropyrimidine Dehydrogenase DeficiencyPaclitaxelAdministration, OralDeoxyuracil NucleotidesUridineAzoxymethaneSigmoid NeoplasmsPhosphonoacetic AcidApoptosisInterferon-alphaGastrointestinal NeoplasmsCell SurvivalDiverticulum, ColonAntineoplastic Agents, PhytogenicDrug Screening Assays, AntitumorPrognosisUridine PhosphorylaseTrimetrexateDiarrheaMitomycinsMaximum Tolerated Dose