GastritisGastroesophageal RefluxHelicobacter pyloriHelicobacter InfectionsHelicobacterGastritis, AtrophicEsophagogastric JunctionGastric MucosaEsophageal pH MonitoringStomachFundoplicationEsophagusStomach NeoplasmsEsophagitisGap JunctionsGastroscopyProton Pump InhibitorsIntercellular JunctionsUreasePyloric AntrumTight JunctionsMetaplasiaManometryPeptic UlcerHelicobacter heilmanniiHernia, HiatalOmeprazoleHelicobacter hepaticusEsophagitis, PepticAnti-Ulcer AgentsDyspepsiaBarrett EsophagusEsophagoscopyEndoscopy, Digestive SystemEndoscopy, GastrointestinalEsophageal NeoplasmsStomach DiseasesHeartburnEsophageal Sphincter, LowerStomach UlcerLaryngopharyngeal Reflux2-PyridinylmethylsulfinylbenzimidazolesPepsinogen ALaryngitisAmoxicillinGastritis, HypertrophicAdherens JunctionsClarithromycinNeuromuscular JunctionCardiaAntacidsBacterial ProteinsMetronidazoleLansoprazoleGastric FundusBile RefluxGastric AcidAntigens, BacterialGastric Acidity DeterminationEndoscopyBiopsyAchlorhydriaAdenocarcinomaHistamine H2 AntagonistsGastrinsEsophageal DiseasesGastric JuiceChronic DiseaseBismuthPepsinogen CDuodenitisHydrogen-Ion ConcentrationDuodenogastric RefluxEsophageal Motility DisordersAntibodies, BacterialDeglutition DisordersPneumonia, AspirationPrecancerous ConditionsRanitidineParietal Cells, GastricGastric EmptyingGastrointestinal DiseasesRabeprazoleBreath TestsTechnetium Tc 99m Sulfur ColloidPepsinogensDuodenal UlcerTooth ErosionEosinophilic EsophagitisAnti-Bacterial AgentsLaparoscopyTreatment OutcomePrevalenceEsomeprazolePolymerase Chain ReactionDrug Therapy, CombinationMolecular Sequence DataDNA, BacterialPeristalsisProspective Studies