Colorectal NeoplasmsColonic NeoplasmsColonoscopyAdenomaRectal NeoplasmsColorectal Neoplasms, Hereditary NonpolyposisEarly Detection of CancerAdenocarcinomaSigmoidoscopyFluorouracilNeoplasm MetastasisColonic PolypsOrganoplatinum CompoundsNeoplasm StagingTumor Markers, BiologicalOccult BloodPrognosisLeucovorinGene Expression Regulation, NeoplasticHT29 CellsCamptothecinLiver NeoplasmsCell Line, TumorCarcinomaRectumMass ScreeningCarcinoembryonic AntigenMicrosatellite InstabilityRisk FactorsColonNeoplasm ProteinsAdenomatous PolypsAntineoplastic Combined Chemotherapy ProtocolsSurvival AnalysisColon, DescendingMutationHCT116 CellsColorectal SurgeryMicrosatellite RepeatsSurvival RateGenetic Predisposition to DiseaseAntineoplastic AgentsDNA MethylationNeoplasm InvasivenessAdenomatous Polyposis ColiDNA, NeoplasmProspective StudiesImmunohistochemistryMutS Homolog 2 ProteinIntestinal MucosaCase-Control StudiesColectomyIntestinal PolypsMice, NudeRetrospective StudiesFollow-Up StudiesProto-Oncogene Proteins B-rafGenes, APCDisease ProgressionNeoplasmsDNA Mismatch RepairGerm-Line MutationAntimetabolites, Antineoplasticras ProteinsReverse Transcriptase Polymerase Chain ReactionRiskLung NeoplasmsTreatment OutcomeDisease-Free SurvivalBreast Neoplasmsbeta CateninRNA, MessengerGenes, rasAntibodies, Monoclonal, HumanizedIncidenceGenotypeStomach NeoplasmsUnited StatesPolymerase Chain ReactionNeoplasm Recurrence, LocalRegistriesPolymorphism, GeneticColon, SigmoidRisk AssessmentProstatic NeoplasmsAntibodies, MonoclonalProto-Oncogene ProteinsOdds RatioAdaptor Proteins, Signal TransducingDNA Mutational AnalysisSensitivity and SpecificityCell ProliferationOvarian NeoplasmsCohort StudiesKaplan-Meier EstimateColonography, Computed TomographicApoptosisTumor Cells, CulturedDrug Resistance, NeoplasmMultivariate Analysis