Digestive System NeoplasmsDigestive System DiseasesDigestive SystemAnus, ImperforateAnus NeoplasmsDigestive System and Oral Physiological PhenomenaDigestive System Physiological PhenomenaDigestive System ProcessesAnus DiseasesDigestive System FistulaGastrointestinal TractClemastineDigestive System AbnormalitiesGastrointestinal NeoplasmsAnal CanalDiagnostic Techniques, Digestive SystemGastrointestinal DiseasesLarvaIntestinesPancreasStomachRectovaginal FistulaPerineumRectal FistulaTissue DistributionDigestive System Surgical ProceduresAbortion, EugenicCause of DeathRectumUrogenital AbnormalitiesStomach NeoplasmsRectal ProlapseCloacaAbnormalities, MultipleNeoplasmsRectal DiseasesEndoscopy, Digestive SystemChinaAsian Continental Ancestry GroupLiver NeoplasmsTime FactorsMolecular Sequence DataHemorrhoidsRisk FactorsPropanididPhylogenyGenetic Predisposition to DiseaseSurgically-Created StructuresPolymorphism, GeneticDilatationDigestionNational Institute of Diabetes and Digestive and Kidney Diseases (U.S.)Urinary FistulaBladder ExstrophyColostomyNeoplasms, FibroepithelialDefecation