Gastrointestinal TractDigestive SystemEndocrine GlandsEndocrine SystemDigestive System Physiological PhenomenaEndocrine Gland NeoplasmsEndocrine System DiseasesEndocrine DisruptorsUpper Gastrointestinal TractGastrointestinal NeoplasmsGastrointestinal DiseasesLower Gastrointestinal TractStomachIntestinal MucosaIntestinesMultiple Endocrine Neoplasia Type 1Urinary Tract InfectionsIntestine, SmallMultiple Endocrine NeoplasiaEnteroendocrine CellsColonDuodenumUrinary TractCecumIntestine, LargeEnteric Nervous SystemFecesPancreasGastric MucosaGastrointestinal MotilityGerm-Free LifeIntestinal AbsorptionIleumMultiple Endocrine Neoplasia Type 2aJejunumGastrointestinal ContentsRespiratory Tract InfectionsLactobacillusImmunohistochemistryPyramidal TractsGastrointestinal HormonesGastrointestinal HemorrhageEndoscopy, GastrointestinalProbioticsCarcinoid TumorGastrointestinal TransitEsophagusAdministration, OralIslets of LangerhansGastrointestinal Stromal TumorsMultiple Endocrine Neoplasia Type 2bDigestionHormonesSwineSomatostatinNeuroendocrine TumorsAntineoplastic Agents, HormonalPancreatic PolypeptideLactobacillus reuteriPancreatic NeoplasmsMolecular Sequence DataTime FactorsDigestive System NeoplasmsTissue DistributionAnimal FeedStomach DiseasesInflammatory Bowel DiseasesRNA, MessengerMetagenomeEndocrinologyBifidobacteriumGastrinsChromograninsGlucagonGastric EmptyingStomach NeoplasmsForeign BodiesEnteritisDigestive System DiseasesIntestinal NeoplasmsGenitalia, FemaleIntestinal DiseasesUrogenital SystemColony Count, MicrobialTamoxifenIntubation, GastrointestinalRectumProto-Oncogene Proteins c-retChromogranin ABacteriaDigestive System Surgical ProceduresEndoscopes, GastrointestinalOrgan SpecificityPregnancyAdenoma, Islet CellEndocrine Surgical ProceduresCrop, AvianEndoscopyDuodenal NeoplasmsDigestive System Abnormalities