LeucovorinGlucuronatesFluorouracilOrganoplatinum CompoundsAntineoplastic Combined Chemotherapy ProtocolsAntidotesColorectal NeoplasmsCamptothecinTrimetrexateDrug Administration ScheduleUracilMethotrexateTegafurInfusions, IntravenousAntimetabolites, AntineoplasticTetrahydrofolatesLevamisoleAdenocarcinomaLevoleucovorinSurvival AnalysisAminopterinTreatment OutcomeChronotherapyNeoplasm MetastasisColonic NeoplasmsDisease-Free SurvivalThymidylate SynthaseFloxuridineRectal NeoplasmsChemotherapy, AdjuvantAdministration, OralInjections, IntravenousStomatitisFolic Acid AntagonistsNeutropeniaCisplatinInfusions, Intra-ArterialDiarrheaSurvival RatePteroylpolyglutamic AcidsDose-Response Relationship, DrugStomach NeoplasmsMaximum Tolerated DoseNeoplasm StagingCombined Modality TherapyPolyglutamic AcidLeukemia L1210Drug Evaluationgamma-Glutamyl HydrolaseDeoxycytidineNauseaAntibodies, Monoclonal, HumanizedVitamin B ComplexLiver NeoplasmsTime FactorsFluorodeoxyuridylateHepatic ArteryLeukopeniaDihydrouracil Dehydrogenase (NADP)Biliary Tract NeoplasmsGastrointestinal NeoplasmsAgranulocytosisDisease ProgressionSalvage TherapyNeoplasm Recurrence, LocalThrombocytopeniaNeoadjuvant TherapyPhosphonoacetic AcidQuinazolinesAntibodies, MonoclonalNeoplasms