Anus, ImperforateAnal CanalDigestive System AbnormalitiesRectumUrogenital AbnormalitiesRectovaginal FistulaCloacaAbnormalities, MultiplePerineumAbortion, EugenicRectal FistulaAnus NeoplasmsAnus DiseasesColostomyDefecationOstomySurgically-Created StructuresDigestive System Surgical ProceduresEthylenethioureaSacrumBladder ExstrophyUrinary FistulaInfant, NewbornRectal DiseasesHirschsprung DiseaseArteriovenous MalformationsReconstructive Surgical ProceduresFecal IncontinenceSyndromeHemorrhoidsManometry