Helicobacter felisHelicobacterMetaplasiaHelicobacter InfectionsHelicobacter pyloriRickettsia felisGastric MucosaUreaseGastritisHelicobacter heilmanniiStomachCat DiseasesFelisParietal Cells, GastricCatsStomach NeoplasmsDog DiseasesSiphonapteraAntibodies, BacterialHelicobacter hepaticusDNA, BacterialCtenocephalidesDogsGastritis, AtrophicRNA, Ribosomal, 16SRickettsia InfectionsBarrett EsophagusMolecular Sequence DataStomach DiseasesPrecancerous ConditionsPeptic UlcerFlea InfestationsClarithromycinDyspepsiaMetronidazoleMice, Inbred C57BLAmoxicillinPyloric AntrumBacterial ProteinsOmeprazoleAnti-Ulcer AgentsGastroscopyAntigens, BacterialStomach UlcerChlamydophila