Colonic NeoplasmsDimethylhydrazinesIntestinal PolypsAdenomaPrevalenceColonColonic DiseasesIntestinal MucosaPancreatic NeoplasmsColonic PolypsNeoplasmsCross-Sectional StudiesRisk FactorsNeoplasms, Cystic, Mucinous, and SerousColitisSkin NeoplasmsNeoplasms, Multiple PrimaryAge DistributionGastrointestinal TransitAge FactorsDiverticulosis, ColonicColonic Pseudo-ObstructionKidney NeoplasmsGastrointestinal MotilityRetrospective StudiesSex DistributionNeoplasms, Second PrimaryAdenocarcinoma, MucinousSex FactorsImmunohistochemistryBrazilThyroid NeoplasmsFecesColitis, Ulcerative