Colorectal NeoplasmsPolypsColonic PolypsAdenomatous PolypsNasal PolypsColonoscopyAdenomaColonic NeoplasmsRectal NeoplasmsEarly Detection of CancerColorectal Neoplasms, Hereditary NonpolyposisSigmoidoscopyAdenocarcinomaFluorouracilOccult BloodNeoplasm MetastasisAdenomatous Polyposis ColiTumor Markers, BiologicalNeoplasm StagingOrganoplatinum CompoundsPrognosisLeucovorinGene Expression Regulation, NeoplasticColonCamptothecinColonography, Computed TomographicMass ScreeningRectumLiver NeoplasmsCarcinomaRisk FactorsHT29 CellsMutationCell Line, TumorHCT116 CellsMicrosatellite InstabilityCarcinoembryonic AntigenMicrosatellite RepeatsGenetic Predisposition to DiseaseNeoplasm ProteinsSurvival AnalysisAntineoplastic Combined Chemotherapy ProtocolsColorectal SurgerySurvival RateProspective StudiesGenes, APCDNA MethylationNeoplasm InvasivenessImmunohistochemistryCase-Control StudiesDNA, NeoplasmMutS Homolog 2 ProteinAntineoplastic AgentsRetrospective StudiesGerm-Line MutationProto-Oncogene Proteins B-rafColectomyDisease ProgressionIntestinal PolypsIntestinal MucosaFollow-Up StudiesDNA Mismatch RepairRiskras ProteinsTreatment OutcomeStomach NeoplasmsNeoplasmsMice, NudeAntimetabolites, AntineoplasticDisease-Free SurvivalLung NeoplasmsGenes, rasBreast NeoplasmsGenotypeReverse Transcriptase Polymerase Chain ReactionIncidenceNeoplasm Recurrence, LocalAntibodies, Monoclonal, HumanizedUnited Statesbeta CateninSensitivity and SpecificityPolymorphism, GeneticPolymerase Chain ReactionOdds RatioRisk AssessmentDNA Mutational AnalysisRegistriesRectal DiseasesRNA, MessengerProstatic NeoplasmsAdaptor Proteins, Signal TransducingCohort StudiesProto-Oncogene ProteinsAntibodies, MonoclonalAge FactorsPrecancerous ConditionsOvarian NeoplasmsMultivariate AnalysisKaplan-Meier EstimateBase Pair Mismatch