Duodenal NeoplasmsDuodenal DiseasesDuodenal ObstructionBrunner GlandsJejunumIntestine, SmallStomachDuodenoscopyIntestinal MucosaGastrointestinal MotilityDuodenitisIleumPylorusIntestinal AbsorptionPyloric AntrumIntestinesPancreasMyoelectric Complex, MigratingDigestionDigestive SystemAmpulla of VaterSecretinDuodenal UlcerPancreaticoduodenectomyPancreatic JuiceRumenEpirizoleGastric EmptyingHydrochloric AcidAbomasumMotilinGastrointestinal TransitDigestive System Physiological PhenomenaIntestinal SecretionsCholecystokininBicarbonatesCommon Bile DuctAnimal FeedMuscle, SmoothEnteropeptidaseTime FactorsEndoscopy, GastrointestinalGastric MucosaS100 Calcium Binding Protein GIntestinal FistulaSphincter of OddiUpper Gastrointestinal TractSuperior Mesenteric Artery SyndromeStomach, RuminantCalbindinsGastric Outlet ObstructionLong QT SyndromeSomatostatinomaGastrointestinal TractDuodenostomyGastrointestinal HemorrhageZollinger-Ellison SyndromeIntubation, GastrointestinalMolecular Sequence DataVagotomyGallbladderColonEnteroendocrine CellsCattleGastrointestinal ContentsChoristomaCysteamineRNA, MessengerRats, WistarBarium SulfateHydrogen-Ion ConcentrationBase SequenceStomach DiseasesSwineTrimebutineMelenaGastrinsDogsNitrogenIntestinal AtresiaMuscle RelaxationMuscle ContractionMicrovilliVagus NerveGastric JuiceCation Transport ProteinsRats, Sprague-DawleyEatingMyenteric PlexusCommon Bile Duct NeoplasmsEnterocytesGastrointestinal HormonesEndoscopyEsophagusIntestinal PolypsJejunal NeoplasmsGastrinomaButylscopolammonium BromideEmeticsGastric Acid