Peptic UlcerPeptic Ulcer HemorrhagePeptic Ulcer PerforationStomach UlcerDuodenal UlcerRecurrenceHelicobacter pyloriNeoplasm Recurrence, LocalHelicobacter InfectionsLeg UlcerPressure UlcerSkin UlcerAnti-Ulcer AgentsGastritisHemostasis, EndoscopicDyspepsiaOmeprazoleGastroscopyProton Pump InhibitorsEndoscopy, GastrointestinalHematemesisGastric MucosaHistamine H2 AntagonistsMelenaBuruli UlcerAnti-Inflammatory Agents, Non-SteroidalTreatment OutcomeGastrointestinal HemorrhageCimetidineAmoxicillinEndoscopyGastric AcidRanitidineClarithromycin2-PyridinylmethylsulfinylbenzimidazolesAntacidsMetronidazoleDuodenoscopyStomachGastric JuiceFollow-Up StudiesStomach NeoplasmsVagotomy, Proximal GastricVagotomyLansoprazoleElectrocoagulationRetrospective StudiesGastrointestinal DiseasesDuodenitisRisk FactorsGastroenterostomyStomach DiseasesDrug Therapy, CombinationEndoscopy, Digestive SystemProspective StudiesTime FactorsBismuthPrognosisPylorusGastrectomyFurazolidoneEsophagitisPyloric AntrumAnti-Bacterial AgentsAntigens, BacterialTinidazoleGastrinsUpper Gastrointestinal TractDiabetic FootDuodenumUreasePostoperative ComplicationsGastric Outlet ObstructionBiopsyTetragastrinBreath TestsGastric FistulaBacterial ProteinsIncidenceAspirinAge FactorsCombined Modality TherapyDumping SyndromeZollinger-Ellison SyndromePepsinogensEsomeprazoleNeoplasm StagingPolandDuodenal DiseasesPrevalenceMycobacterium ulceransGastritis, AtrophicRabeprazoleCytotoxinsCohort StudiesDisease-Free SurvivalOrganometallic CompoundsSurvival RateBandagesGastric Acidity Determination