PolypsColonic PolypsNasal PolypsAdenomatous PolypsColonic NeoplasmsColonoscopyColon, DescendingAdenomaColon, AscendingColonography, Computed TomographicColon, SigmoidColorectal NeoplasmsAdenomatous Polyposis ColiPolyphosphatesColon, TransverseIntestinal MucosaDiverticulum, ColonColonic DiseasesPeutz-Jeghers SyndromeGenes, APCSinusitisHyperplasiaRectal NeoplasmsRectal DiseasesIntestinal PolyposisHT29 CellsAdenocarcinomaAzoxymethaneRectumPrecancerous ConditionsSigmoidoscopyNeoplasms, FibroepithelialColectomyColonoscopesSigmoid NeoplasmsEndoscopyEnemaRhinitisUterine DiseasesColonIntestinal NeoplasmsHydraNasal MucosaStomach DiseasesHysteroscopyHydrozoaImmunohistochemistryCecal NeoplasmsIntestine, LargeColitisGallbladder DiseasesHamartoma1,2-DimethylhydrazineBarium SulfatePhosphotransferases (Phosphate Group Acceptor)Cell Line, TumorCnidariaSigmoid DiseasesDuodenal NeoplasmsAdenoma, VillousCecumAberrant Crypt Focibeta CateninCatharticsDimethylhydrazinesParanasal SinusesCarcinomaTumor Cells, CulturedGardner SyndromeCarcinogensGene Expression Regulation, NeoplasticAnticarcinogenic AgentsCaco-2 CellsEndoscopy, GastrointestinalLaryngeal DiseasesCyclooxygenase 2MucinsGastroscopyIntestine, SmallBiopsyNeoplasms, Multiple PrimaryRNA, MessengerAnti-Inflammatory Agents, Non-SteroidalApoptosisRetrospective StudiesColitis, UlcerativeGastrointestinal MotilityCase-Control StudiesRisk FactorsRadiographic Image Interpretation, Computer-AssistedTumor Markers, BiologicalGallbladder NeoplasmsEndometrial Neoplasms