Bile RefluxGastritisDuodenogastric RefluxPostgastrectomy SyndromesGastroesophageal RefluxGastritis, AtrophicGastroenterostomyAnastomosis, Roux-en-YStomachPyloric AntrumGastric JuiceBiliary Tract DiseasesGastric EmptyingHelicobacter pyloriVesico-Ureteral RefluxVagotomyEndoscopy, GastrointestinalHelicobacter InfectionsGastric MucosaGallbladderBile DuctsEsophagitis, PepticBiopsyEsophagusGastroscopyLaryngopharyngeal RefluxMetaplasiaGastritis, HypertrophicPostoperative ComplicationsEsophagitisEsophageal pH MonitoringPepsinogen AStomach NeoplasmsHeartburnAchlorhydriaManometryProton Pump InhibitorsGastric Acidity DeterminationChronic DiseaseAnti-Ulcer AgentsGastric AcidHernia, HiatalVenous InsufficiencyGastrinsStomach UlcerDyspepsiaPeptic UlcerOmeprazoleEsophagogastric JunctionAntacidsEsophagoscopyStomach DiseasesDuodenal UlcerBarrett EsophagusFundoplicationPepsinogen CEndoscopyEndoscopy, Digestive SystemHelicobacter felis2-PyridinylmethylsulfinylbenzimidazolesHelicobacter heilmanniiDuodenitisAnemia, PerniciousParietal Cells, GastricSeverity of Illness IndexHydrogen-Ion ConcentrationHelicobacterVaricose VeinsProspective StudiesGastric FundusUreasePepsinogensPrecancerous ConditionsTreatment OutcomePeristalsisPrevalenceLansoprazoleFollow-Up StudiesGastrointestinal DiseasesLaryngitisAtrophyRisk FactorsCisaprideUltrasonography, Doppler, DuplexEsophageal Sphincter, LowerEructationCoughQuestionnairesSymptom AssessmentTime FactorsCampylobacterDepressionRetrospective StudiesAmoxicillinAcinonyxRabeprazoleEsomeprazoleHistamine H2 AntagonistsAntigens, BacterialPopliteal Vein