Helicobacter pyloriHelicobacter InfectionsGastritisGastric MucosaUreasePylorusPeptic UlcerStomachClarithromycinAmoxicillinMetronidazoleDyspepsiaDuodenal UlcerAnti-Ulcer AgentsOmeprazoleBacterial ProteinsStomach NeoplasmsPyloric AntrumStomach DiseasesGastritis, AtrophicBreath TestsStomach UlcerBismuthAnti-Bacterial AgentsAntibodies, BacterialGastroscopyLansoprazoleDrug Therapy, CombinationPepsinogen AMetaplasiaProton Pump InhibitorsTinidazoleBiopsyLewis Blood-Group SystemDuodenitisEndoscopy, GastrointestinalGerbillinaeUreaFurazolidoneRanitidineHelicobacterCampylobacterGastrinsPepsinogensGastric AcidDNA, BacterialPepsinogen CAntacidsPolymerase Chain ReactionTetracyclineCytotoxinsGastric JuiceImmunoglobulin GAntitrichomonal AgentsLymphoma, B-Cell, Marginal ZoneBacterial AdhesionOrganometallic CompoundsMolecular Sequence DataPenicillinsSeroepidemiologic StudiesVirulenceEnzyme-Linked Immunosorbent AssayPrevalenceVirulence FactorsGenes, BacterialEndoscopy, Digestive SystemAzure StainsGastric MucinsNitroreductasesAchlorhydriaGastrointestinal DiseasesGastroesophageal RefluxDuodenumAntigens, CD15Adhesins, BacterialParietal Cells, GastricEpithelial CellsEndoscopySensitivity and SpecificitySulfoxidesInterleukin-8Peptic Ulcer HemorrhageEsophagitisSerologic TestsMicrobial Sensitivity TestsColony Count, MicrobialEsophagitis, PepticGenomic IslandsChronic DiseaseGene Expression Regulation, BacterialProspective StudiesHelicobacter felisGenotypeHelicobacter heilmanniiCase-Control StudiesGastric Acidity DeterminationBase SequenceGenome, BacterialFecesBacterial Vaccines