GastritisGastroesophageal RefluxHelicobacter pyloriHelicobacter InfectionsHelicobacterGastritis, AtrophicGastric MucosaEsophagogastric JunctionEsophageal pH MonitoringStomachFundoplicationEsophagusStomach NeoplasmsEsophagitisGastroscopyProton Pump InhibitorsUreasePyloric AntrumMetaplasiaManometryPeptic UlcerHelicobacter heilmanniiHernia, HiatalOmeprazoleHelicobacter hepaticusEsophagitis, PepticAnti-Ulcer AgentsDyspepsiaEndoscopy, Digestive SystemEndoscopy, GastrointestinalBarrett EsophagusEsophagoscopyEsophageal NeoplasmsStomach DiseasesHeartburnEsophageal Sphincter, LowerStomach UlcerLaryngopharyngeal Reflux2-PyridinylmethylsulfinylbenzimidazolesPepsinogen ALaryngitisAmoxicillinGastritis, HypertrophicClarithromycinAntacidsMetronidazoleLansoprazoleCardiaBacterial ProteinsBile RefluxGastric FundusGastric AcidGastric Acidity DeterminationAntigens, BacterialEndoscopyBiopsyAchlorhydriaHistamine H2 AntagonistsGastrinsAdenocarcinomaEsophageal DiseasesGastric JuiceChronic DiseaseBismuthPepsinogen CDuodenitisHydrogen-Ion ConcentrationDuodenogastric RefluxAntibodies, BacterialEsophageal Motility DisordersDeglutition DisordersPneumonia, AspirationRanitidineParietal Cells, GastricPrecancerous ConditionsGastric EmptyingGastrointestinal DiseasesRabeprazoleBreath TestsTechnetium Tc 99m Sulfur ColloidPepsinogensDuodenal UlcerTooth ErosionEosinophilic EsophagitisAnti-Bacterial AgentsLaparoscopyPrevalenceEsomeprazoleTreatment OutcomeDrug Therapy, CombinationCoughPolymerase Chain ReactionProspective StudiesPeristalsisDNA, BacterialCampylobacterEsophageal StenosisHelicobacter felisGastroenterologyOtorhinolaryngologic Diseases