Helicobacter pyloriHelicobacter InfectionsPolypsHelicobacterGastritisGastric MucosaColonic PolypsUreasePeptic UlcerClarithromycinMetronidazoleStomachAmoxicillinNasal PolypsDyspepsiaAnti-Ulcer AgentsOmeprazoleBacterial ProteinsStomach NeoplasmsAdenomatous PolypsStomach DiseasesGastritis, AtrophicBismuthPyloric AntrumAntigens, BacterialDuodenal UlcerBreath TestsStomach UlcerAnti-Bacterial AgentsHelicobacter hepaticusGastroscopyAntibodies, BacterialHelicobacter heilmanniiLansoprazoleProton Pump Inhibitors2-PyridinylmethylsulfinylbenzimidazolesDrug Therapy, CombinationMetaplasiaLewis Blood-Group SystemTinidazoleBiopsyPepsinogen AEndoscopy, GastrointestinalRanitidineUreaDNA, BacterialDuodenitisFurazolidoneGerbillinaePolymerase Chain ReactionCytotoxinsMolecular Sequence DataGastrinsGastric AcidLymphoma, B-Cell, Marginal ZonePepsinogensAntacidsTetracyclinePepsinogen CAntitrichomonal AgentsNitroreductasesPenicillinsRabeprazolePylorusImmunoglobulin GGenes, BacterialVirulenceBacterial AdhesionEndoscopy, Digestive SystemVirulence FactorsGastric MucinsGastric JuiceEndoscopyOrganometallic CompoundsSulfoxidesGastrointestinal DiseasesEnzyme-Linked Immunosorbent AssayColonoscopySensitivity and SpecificityPrevalenceAntigens, CD15Seroepidemiologic StudiesAchlorhydriaParietal Cells, GastricAdhesins, BacterialPrecancerous ConditionsGastroesophageal RefluxEpithelial CellsMicrobial Sensitivity TestsGenomic IslandsPeptic Ulcer HemorrhageInterleukin-8Gene Expression Regulation, BacterialFecesDrug Resistance, BacterialChronic DiseaseRNA, Ribosomal, 23SAzure StainsBase SequenceGenome, Bacterial