GastritisCrohn DiseaseHelicobacter pyloriDuodenoscopyHelicobacter InfectionsHelicobacterGastritis, AtrophicGastric MucosaStomachUreasePyloric AntrumHelicobacter heilmanniiHelicobacter hepaticusStomach NeoplasmsPeptic UlcerGastroscopyMetaplasiaNod2 Signaling Adaptor ProteinDyspepsiaPepsinogen AStomach DiseasesStomach UlcerAmoxicillinGastritis, HypertrophicClarithromycinAnti-Ulcer AgentsMetronidazoleOmeprazoleBacterial ProteinsAntigens, BacterialAchlorhydriaBiopsyGastrinsInflammatory Bowel DiseasesBismuthColitis, UlcerativePepsinogen CDuodenitisAntibodies, BacterialBile RefluxParietal Cells, Gastric2-PyridinylmethylsulfinylbenzimidazolesEndoscopy, GastrointestinalBreath TestsPepsinogensChronic DiseaseAnti-Bacterial AgentsLansoprazoleGastric JuiceProton Pump InhibitorsGastric AcidDNA, BacterialDrug Therapy, CombinationCampylobacterHelicobacter felisDuodenal UlcerPolymerase Chain ReactionPrecancerous ConditionsIntestinal MucosaGerbillinaeAnemia, PerniciousSpecialties, NursingLewis Blood-Group SystemTinidazoleEndoscopyAcinonyxLymphoma, B-Cell, Marginal ZoneEndoscopy, Digestive SystemAntacidsIntestinesRanitidineCytotoxinsCase-Control StudiesUreaPostgastrectomy SyndromesMolecular Sequence DataGenotypeReceptor-Interacting Protein Serine-Threonine Kinase 2EnterostomyAtrophyGastric Acidity DeterminationAcetylmuramyl-Alanyl-IsoglutamineGastrointestinal DiseasesImmunoglobulin GGastric MucinsIleumH(+)-K(+)-Exchanging ATPaseGastroesophageal RefluxGastric FundusPaneth CellsRNA, Ribosomal, 16SSensitivity and SpecificityRabeprazoleEsophagitisProspective StudiesGenetic Predisposition to DiseaseColon, TransverseFurazolidoneEnzyme-Linked Immunosorbent AssayPrevalence