ManometryEsophageal Motility DisordersSphincter of OddiEsophagusPeristalsisDeglutitionAnal CanalEsophageal AchalasiaPressureEsophageal Spasm, DiffuseEsophageal Sphincter, LowerEsophageal Sphincter, UpperEsophageal pH MonitoringEsophagogastric JunctionGastroesophageal RefluxDeglutition DisordersGastrointestinal MotilityEsophageal DiseasesCommon Bile Duct DiseasesFecal IncontinenceDiagnostic Techniques, Digestive SystemConstipationDefecationRectumMyoelectric Complex, MigratingFluoroscopyFundoplicationPostcholecystectomy SyndromeGastrointestinal TransitSphincter of Oddi DysfunctionIntestinal Pseudo-ObstructionTransducers, PressureTechnetium Tc 99m DisofeninPharynxRectal ProlapseMonitoring, AmbulatoryHernia, HiatalElectric ImpedanceFissure in AnoEsophagoscopyDigestive System Surgical ProceduresAmpulla of VaterChest PainSurgical StaplingRectal DiseasesDilatationSpasmEsophagitis, PepticSpeech, EsophagealGastric EmptyingDuodenumMegacolonButylscopolammonium BromideSphincterotomy, EndoscopicTreatment OutcomeCholecystectomyDefecographyGastrointestinal AgentsTechnetium Tc 99m LidofeninDiverticulum, EsophagealEructationAnti-Dyskinesia AgentsLarynx, ArtificialEncopresisProspective StudiesPyloric AntrumEndoscopyEsophagitisVideo RecordingHeartburnHydrogen-Ion ConcentrationBarium SulfateRetrospective StudiesEndoscopy, Gastrointestinal