Adenomatous PolypsColonic PolypsPolypsAdenomatous Polyposis ColiIntestinal PolypsColonoscopyAdenomaGastrointestinal TractAdenomatous Polyposis Coli ProteinColorectal NeoplasmsColonic NeoplasmsNasal PolypsSigmoidoscopyDigestive SystemIntestinal MucosaColonColonography, Computed TomographicRectal NeoplasmsRectumHyperplasiaBarium SulfateCecal NeoplasmsGardner SyndromeGenes, APCPrecancerous ConditionsEnemaDigestive System Physiological PhenomenaRectal DiseasesGastrointestinal NeoplasmsAdenocarcinomaSulindacUpper Gastrointestinal TractSigmoid NeoplasmsCystadenomaOccult BloodDiverticulum, ColonEndoscopyGastrointestinal DiseasesAnti-Inflammatory Agents, Non-SteroidalGerm-Line MutationColon, TransverseCase-Control Studiesbeta CateninDuodenal NeoplasmsImmunohistochemistryLower Gastrointestinal TractMutationIntestinal NeoplasmsBiopsyRisk FactorsStomachFibromatosis, AggressiveIntestinesCarcinomaMass ScreeningIntestine, LargeRetrospective StudiesCytoskeletal ProteinsIntestine, SmallVegetablesUrinary Tract InfectionsIntestinal PolyposisDietAdenomatosis, PulmonaryDuodenumFruit