Helicobacter pyloriHelicobacter InfectionsUreaseStomachHelicobacterGastric MucosaBacterial ProteinsStomach NeoplasmsGastritisGene Expression Regulation, BacterialHelicobacter hepaticusNickelAntigens, BacterialMolecular Sequence DataVirulence FactorsGenes, BacterialPeptic UlcerClarithromycinBacterial AdhesionDNA, BacterialMetronidazoleHydrogen-Ion ConcentrationAmoxicillinStomach DiseasesDyspepsiaAnti-Ulcer AgentsOmeprazoleAmino Acid SequenceBase SequenceStomach UlcerPyloric AntrumGastritis, AtrophicBismuthMutationSequence Homology, Amino AcidDuodenal UlcerBreath TestsGastroscopyAnti-Bacterial AgentsAntibodies, BacterialGenome, BacterialHelicobacter heilmanniiLansoprazole2-PyridinylmethylsulfinylbenzimidazolesProton Pump InhibitorsDrug Therapy, CombinationMetaplasiaLewis Blood-Group SystemPepsinogen ATinidazoleBiopsyRanitidineEndoscopy, GastrointestinalUreaGerbillinaePolymerase Chain ReactionDuodenitisFurazolidoneGastric AcidGastrinsVirulenceCytotoxinsPepsinogensLymphoma, B-Cell, Marginal ZoneAntacidsPylorusPepsinogen CGastric JuiceTetracyclineAntitrichomonal AgentsGastric MucinsPenicillinsImmunoglobulin GNitroreductasesRabeprazoleParietal Cells, GastricOrganometallic CompoundsGastrointestinal DiseasesEndoscopy, Digestive SystemMicrobial Sensitivity TestsEnzyme-Linked Immunosorbent AssayAchlorhydriaAdhesins, BacterialSulfoxidesSequence Analysis, DNASensitivity and SpecificityEpithelial CellsDrug Resistance, BacterialPrevalenceSeroepidemiologic StudiesAntigens, CD15Colony Count, MicrobialFecesGenomic IslandsGastroesophageal RefluxPeptic Ulcer HemorrhageHost-Pathogen InteractionsInterleukin-8