Duodenal NeoplasmsDuodenal DiseasesDuodenal ObstructionBrunner GlandsIntestine, SmallJejunumStomachDuodenoscopyIntestinal MucosaGastrointestinal MotilityDuodenitisIleumPylorusIntestinal AbsorptionPyloric AntrumIntestinesMyoelectric Complex, MigratingPancreasDigestionDigestive SystemSecretinAmpulla of VaterDuodenal UlcerPancreaticoduodenectomyPancreatic JuiceRumenEpirizoleGastric EmptyingHydrochloric AcidAbomasumMotilinGastrointestinal TransitDigestive System Physiological PhenomenaIntestinal SecretionsBicarbonatesCholecystokininCommon Bile DuctEnteropeptidaseAnimal FeedMuscle, SmoothSphincter of OddiEndoscopy, GastrointestinalIntestinal FistulaS100 Calcium Binding Protein GGastric MucosaUpper Gastrointestinal TractSuperior Mesenteric Artery SyndromeStomach, RuminantCalbindinsGastric Outlet ObstructionSomatostatinomaDuodenostomyZollinger-Ellison SyndromeGastrointestinal TractIntubation, GastrointestinalVagotomyEnteroendocrine CellsGastrointestinal HemorrhageGallbladderGastrointestinal ContentsColonCysteamineChoristomaBarium SulfateTrimebutineStomach DiseasesMelenaGastrinsIntestinal AtresiaRats, WistarGastric JuiceMuscle RelaxationCattleCommon Bile Duct NeoplasmsVagus NerveHydrogen-Ion ConcentrationMicrovilliNitrogenEndoscopySwineMyenteric PlexusIntestinal PolypsGastrointestinal HormonesGastrinomaButylscopolammonium BromideEnterocytesJejunal NeoplasmsEmeticsEatingCation Transport ProteinsMuscle ContractionEsophagusIntestinal PerforationGastric AcidIntestinal NeoplasmsDogsEndoscopy, Digestive SystemDigestive System Surgical ProceduresPancreatic DuctsPancreatitis