Peptic UlcerPeptic Ulcer HemorrhagePeptic Ulcer PerforationStomach UlcerDuodenal UlcerHelicobacter pyloriSkin UlcerLeg UlcerHelicobacter InfectionsUlcerPressure UlcerAnti-Ulcer AgentsGastritisHemostasis, EndoscopicDyspepsiaGastric MucosaOmeprazoleGastroscopyHematemesisProton Pump InhibitorsEndoscopy, GastrointestinalVaricose UlcerCimetidineAnti-Inflammatory Agents, Non-SteroidalCorneal UlcerGastrointestinal HemorrhageHistamine H2 AntagonistsGastric JuiceMelenaBuruli UlcerDiabetic FootStomachDuodenoscopyGastric AcidVagotomyRanitidineEndoscopyVagotomy, Proximal GastricAntacidsAmoxicillinOral UlcerDuodenitis2-PyridinylmethylsulfinylbenzimidazolesRecurrenceGastroenterostomyClarithromycinFoot UlcerStomach DiseasesGastrointestinal DiseasesMetronidazoleStomatitis, AphthousPylorusLansoprazoleStomach NeoplasmsEsophageal DiseasesPyloric AntrumBismuthDuodenumEndoscopy, Digestive SystemElectrocoagulationDrug Therapy, CombinationGastric FistulaEsophagitisGastrinsTreatment OutcomeAntigens, BacterialGastrectomyFurazolidoneDuodenal DiseasesVenous InsufficiencyEye BurnsUreaseAnti-Bacterial AgentsProspective StudiesBurns, ChemicalRisk FactorsTinidazoleUpper Gastrointestinal TractDumping SyndromeBehcet SyndromeBacterial ProteinsAspirinGastric Outlet ObstructionBiopsyZollinger-Ellison SyndromeTime FactorsTetragastrinBreath TestsGastric Acidity DeterminationForefoot, HumanMycobacterium ulceransFoot DiseasesFamotidineCytotoxinsPrevalencePepsinogensFollow-Up StudiesEsomeprazolePostgastrectomy SyndromesChronic Disease