GastritisHelicobacter pyloriHelicobacter InfectionsHelicobacterGastritis, AtrophicBileBile Acids and SaltsGastric MucosaStomachUreasePyloric AntrumBile DuctsHelicobacter heilmanniiHelicobacter hepaticusStomach NeoplasmsPeptic UlcerGastroscopyMetaplasiaDyspepsiaPepsinogen AStomach DiseasesStomach UlcerAmoxicillinGastritis, HypertrophicBile RefluxClarithromycinAnti-Ulcer AgentsMetronidazoleOmeprazoleBacterial ProteinsAntigens, BacterialAchlorhydriaGastrinsBismuthPepsinogen CDuodenitisBiopsyCommon Bile DuctAntibodies, BacterialParietal Cells, Gastric2-PyridinylmethylsulfinylbenzimidazolesEndoscopy, GastrointestinalBreath TestsChronic DiseasePepsinogensAnti-Bacterial AgentsGastric JuiceBile CanaliculiLansoprazoleProton Pump InhibitorsGastric AcidBile PigmentsBile Duct DiseasesDNA, BacterialBile Ducts, IntrahepaticBile Duct NeoplasmsDrug Therapy, CombinationPolymerase Chain ReactionCampylobacterPrecancerous ConditionsDuodenal UlcerHelicobacter felisGerbillinaeAnemia, PerniciousEndoscopyEndoscopy, Digestive SystemBile Ducts, ExtrahepaticGallbladderLewis Blood-Group SystemTinidazoleTaurocholic AcidAcinonyxLymphoma, B-Cell, Marginal ZoneAntacidsMolecular Sequence DataPostgastrectomy SyndromesCytotoxinsRanitidineUreaChenodeoxycholic AcidGastric Acidity DeterminationFecesAtrophyCholic AcidsGastrointestinal DiseasesDeoxycholic AcidGastric MucinsImmunoglobulin GGastroesophageal RefluxDuodenumH(+)-K(+)-Exchanging ATPaseGastric FundusEsophagitisRNA, Ribosomal, 16SRabeprazoleDuodenogastric RefluxCholelithiasisCholic AcidFurazolidoneCholestasis