Anal CanalEsophagogastric JunctionManometryPressureSphincter of OddiFecal IncontinenceEsophageal Sphincter, LowerEsophageal AchalasiaEsophagusGastroesophageal RefluxFissure in AnoPeristalsisCisaprideAnus DiseasesOpossumsRectumAnti-Dyskinesia AgentsLacerationsBlood PressureEsophagitis, PepticGastrointestinal MotilityPerineumGastrinsMotilinDefecationRectal ProlapseEsophagitisDilatationHernia, HiatalUrethraEsophagoscopyObstetric Labor ComplicationsPentagastrinEsophageal Motility DisordersStomachFundoplicationHydrochloric AcidDeglutition DisordersBotulinum ToxinsSphincter of Oddi DysfunctionEsophageal Sphincter, UpperEndosonographyMuscle RelaxationArtificial OrgansEpisiotomyCatheterizationMuscle ContractionMuscle, SmoothHydrostatic PressurePudendal NerveReflexUrinary Sphincter, ArtificialGastric JuiceDouble-Blind MethodBethanecholHydrogen-Ion ConcentrationImplantable NeurostimulatorsPelvic FloorElectromyographyMuscle TonusLumbosacral PlexusConstipationRectal DiseasesPuerperal DisordersUrinationSpasmUrodynamicsDose-Response Relationship, Drug