Peptic UlcerPeptic Ulcer HemorrhagePeptic Ulcer PerforationStomach UlcerDuodenal UlcerStomachHelicobacter pyloriHelicobacter InfectionsLeg UlcerPressure UlcerStomach NeoplasmsAnti-Ulcer AgentsSkin UlcerGastritisGastric MucosaHemostasis, EndoscopicDyspepsiaStomach DiseasesGastroscopyOmeprazoleEndoscopy, GastrointestinalProton Pump InhibitorsHematemesisHistamine H2 AntagonistsGastric AcidMelenaAnti-Inflammatory Agents, Non-SteroidalGastric JuiceBuruli UlcerGastrointestinal HemorrhageCimetidineAmoxicillinRanitidineAntacidsClarithromycin2-PyridinylmethylsulfinylbenzimidazolesPyloric AntrumEndoscopyVagotomyDuodenoscopyMetronidazoleGastrointestinal DiseasesLansoprazolePylorusGastroenterostomyDuodenitisVagotomy, Proximal GastricRecurrenceGastrectomyElectrocoagulationEndoscopy, Digestive SystemGastrinsDuodenumBismuthGastric FistulaDrug Therapy, CombinationUreaseEsophagitisFurazolidoneUpper Gastrointestinal TractAntigens, BacterialGastric Outlet ObstructionAnti-Bacterial AgentsPepsinogensTetragastrinTinidazoleTreatment OutcomeDiabetic FootRisk FactorsBacterial ProteinsBreath TestsProspective StudiesGastritis, AtrophicGastric Acidity DeterminationAspirinDuodenal DiseasesTime FactorsZollinger-Ellison SyndromeEsophageal DiseasesBiopsyEsomeprazolePolandPentagastrinDumping SyndromePostgastrectomy SyndromesFamotidinePrevalenceOrganometallic CompoundsMycobacterium ulceransCytotoxinsRabeprazoleAge FactorsStomach RuptureCampylobacterGastroenterologyFollow-Up StudiesGastroesophageal RefluxParietal Cells, GastricBandagesDiagnostic Techniques, Digestive System