AzoxymethaneColorectal NeoplasmsColonic NeoplasmsCarcinogensColonRats, Inbred F344Aberrant Crypt FociAzo CompoundsAdenomaPrecancerous ConditionsDextran SulfateIntestinal MucosaIntestinal NeoplasmsAnticarcinogenic AgentsAdenocarcinomaTabebuiaColonoscopyColitisCocarcinogenesisColorectal SurgeryColorectal Neoplasms, Hereditary NonpolyposisMethylazoxymethanol AcetateCorn OilPiroxicamMonomethylhydrazinebeta CateninColonic PolypsRectal NeoplasmsCyclooxygenase 2Genes, APCDuodenal NeoplasmsRectumCell Transformation, NeoplasticDietTumor Markers, BiologicalSigmoidoscopyAdenomatous PolypsGene Expression Regulation, NeoplasticFish OilsDimethylhydrazinesImmunohistochemistrySulindacChemopreventionCarcinogenesisApoptosisNucleolus Organizer RegionFluorouracil1,2-DimethylhydrazineGenes, rasPhytic AcidOrnithine DecarboxylaseLiver NeoplasmsUrsodeoxycholic AcidRutinOrganoplatinum CompoundsLeucovorinProstaglandin-Endoperoxide SynthasesDisease Models, AnimalCell ProliferationNeoplasm StagingBody WeightIntestinal PolypsAdenomatous Polyposis ColiNeoplasms, ExperimentalPrognosisMutationCarcinoembryonic AntigenMass ScreeningFecesDietary FiberCamptothecinPlant ExtractsCarcinomaMice, Inbred C57BLEarly Detection of CancerHT29 CellsMucinsCase-Control StudiesMicrosatellite RepeatsAnti-Inflammatory Agents, Non-Steroidal