Helicobacter pyloriGastritisHelicobacter InfectionsHelicobacterGastritis, AtrophicGastric MucosaUreaseStomachPyloric AntrumPeptic UlcerStomach NeoplasmsDyspepsiaHelicobacter heilmanniiAmoxicillinGastroscopyClarithromycinBacterial ProteinsMetronidazoleStomach DiseasesAnti-Ulcer AgentsHelicobacter hepaticusMetaplasiaStomach UlcerOmeprazolePepsinogen AGastrinsGastritis, HypertrophicBismuthDuodenal UlcerAchlorhydriaAntibodies, BacterialBreath TestsAntigens, BacterialBiopsyDuodenitisGastric AcidAnti-Bacterial AgentsPepsinogen CGastric JuiceParietal Cells, GastricLansoprazoleEndoscopy, GastrointestinalPylorusPepsinogensProton Pump InhibitorsDrug Therapy, CombinationChronic DiseaseDNA, BacterialBile RefluxGerbillinaePolymerase Chain ReactionLewis Blood-Group SystemCampylobacterTinidazoleMolecular Sequence Data2-PyridinylmethylsulfinylbenzimidazolesRanitidineUreaAntacidsHelicobacter felisLymphoma, B-Cell, Marginal ZonePrecancerous ConditionsCytotoxinsEndoscopyImmunoglobulin GEndoscopy, Digestive SystemGastric Acidity DeterminationVirulence FactorsEnzyme-Linked Immunosorbent AssayFurazolidoneAnemia, PerniciousDuodenumVirulenceInterleukin-8Gastric MucinsGastrointestinal DiseasesEpithelial CellsGastroesophageal RefluxGenes, BacterialAcinonyxGastric FundusBacterial AdhesionTetracyclineBacterial Secretion SystemsEsophagitisAtrophyH(+)-K(+)-Exchanging ATPaseOrganometallic CompoundsAntitrichomonal AgentsBase SequencePrevalencePenicillinsBodily SecretionsGenomic IslandsSecretory RateGene Expression Regulation, BacterialMice, Inbred C57BLEsophagitis, PepticCells, CulturedPostgastrectomy Syndromes