Intestinal ObstructionGastritisGastric MucosaGastritis, AtrophicBezoarsTissue AdhesionsIleal DiseasesHelicobacter pyloriJejunal DiseasesHelicobacter InfectionsAirway ObstructionIntestine, SmallDiatrizoate MeglumineColonic DiseasesIntestinal MucosaUreteral ObstructionDuodenal ObstructionStomach UlcerHerniaMeckel DiverticulumStomachIntussusceptionPyloric AntrumStomach NeoplasmsVitelline DuctIleusMetaplasiaInflammatory Bowel DiseasesStomach DiseasesLaparotomyHernia, AbdominalIntubation, GastrointestinalDigestive System Surgical ProceduresGastroscopyBarium SulfateParietal Cells, GastricGastritis, HypertrophicGastric JuiceIntestinal AtresiaMouth MucosaGastrinsPostoperative ComplicationsLaparoscopyIrritable Bowel SyndromeEndoscopy, GastrointestinalPepsinogen AIntestinal VolvulusAbdominal PainIleocecal ValvePeritoneal DiseasesIntestinal Pseudo-ObstructionIntestinal DiseasesAbdomen, AcuteGastric AcidIntestinal NeoplasmsBile RefluxUrinary Bladder Neck ObstructionUrethral ObstructionTomography, X-Ray ComputedPepsinogensNasal ObstructionIleostomyAchlorhydriaIntestinal PerforationHelicobacterPeptic UlcerGastric Outlet ObstructionBiopsyTreatment OutcomeDiverticulumIntestinal FistulaColostomyIleumRetrospective StudiesIntestine, LargeDuodenal UlcerColectomyDuodenal DiseasesVentricular Outflow ObstructionNasal MucosaSigmoid DiseasesEnemaColitis, UlcerativeAnti-Ulcer AgentsCrohn DiseaseColonCapsule EndoscopyH(+)-K(+)-Exchanging ATPaseAnastomosis, SurgicalChoristomaHelicobacter heilmanniiChronic DiseaseForeign-Body MigrationFecal ImpactionPrecancerous ConditionsGastrostomyIntestinesUreaseHelicobacter felisPepsinogen C