Sphincter of OddiManometryEsophageal Motility DisordersEsophagusPeristalsisDeglutitionAnal CanalEsophageal AchalasiaEsophageal Spasm, DiffusePressureEsophageal Sphincter, LowerEsophageal Sphincter, UpperEsophageal pH MonitoringEsophagogastric JunctionGastroesophageal RefluxGastrointestinal MotilityDeglutition DisordersEsophageal DiseasesCommon Bile Duct DiseasesFecal IncontinenceDiagnostic Techniques, Digestive SystemConstipationDefecationRectumMyoelectric Complex, MigratingPostcholecystectomy SyndromeGastrointestinal TransitFundoplicationSphincter of Oddi DysfunctionIntestinal Pseudo-ObstructionFluoroscopyTransducers, PressureTechnetium Tc 99m DisofeninPharynx