Helicobacter pyloriMetronidazoleHelicobacter InfectionsHelicobacterGastritisGastric MucosaUreaseClarithromycinAmoxicillinPeptic UlcerAnti-Ulcer AgentsOmeprazoleStomachAntitrichomonal AgentsDyspepsiaBismuthAnti-Bacterial AgentsBacterial ProteinsStomach NeoplasmsDuodenal UlcerStomach DiseasesTinidazoleGastritis, AtrophicBreath TestsNitroreductasesPyloric AntrumDrug Therapy, CombinationStomach UlcerAntigens, Bacterial2-PyridinylmethylsulfinylbenzimidazolesHelicobacter hepaticusLansoprazoleGastroscopyFurazolidoneProton Pump InhibitorsRanitidineAntibodies, BacterialTetracyclineHelicobacter heilmanniiAnti-Infective AgentsMicrobial Sensitivity TestsLewis Blood-Group SystemMetaplasiaUreaBiopsyDNA, BacterialPepsinogen ADuodenitisAntacidsPenicillinsNitroimidazolesEndoscopy, GastrointestinalGerbillinaeDrug Resistance, MicrobialPolymerase Chain ReactionDrug Resistance, BacterialOrganometallic CompoundsMolecular Sequence DataCytotoxinsBacteria, AnaerobicTrichomonas vaginalisSulfoxidesGastrinsGastric AcidLymphoma, B-Cell, Marginal ZonePepsinogensTrichomonas VaginitisRabeprazolePepsinogen CBacteroides fragilisGenes, BacterialGastric JuiceRosaceaVirulencePylorusClindamycinImmunoglobulin GBacteroides InfectionsBacterial AdhesionVirulence FactorsFecesEnterocolitis, PseudomembranousOrnidazoleGastric MucinsVaginosis, BacterialColony Count, MicrobialClostridium difficileEndoscopy, Digestive SystemNitrofuransProspective StudiesPrevalenceBulgariaLevofloxacinTreatment OutcomeGastrointestinal DiseasesEnzyme-Linked Immunosorbent AssayRNA, Ribosomal, 23SAntigens, CD15Seroepidemiologic StudiesAntiprotozoal Agents