Gastroesophageal RefluxBile RefluxEsophagusEsophagitis, PepticEsophageal pH MonitoringManometryDuodenogastric RefluxHeartburnGastric Acidity DeterminationEsophagitisVesico-Ureteral RefluxEsophagoscopyEsophagogastric JunctionEructationPeristalsisGastric AcidBarrett EsophagusLaryngopharyngeal RefluxSilicic AcidAntacidsHydrogen-Ion ConcentrationMorning SicknessProton Pump InhibitorsHernia, HiatalMonitoring, PhysiologicOmeprazoleProlapseAnti-Ulcer AgentsFundoplicationNizatidineMonitoring, AmbulatoryAluminum HydroxideEsophageal Motility Disorders2-PyridinylmethylsulfinylbenzimidazolesEsophageal DiseasesElectric ImpedanceCoughGastroscopyRanitidineSodium BicarbonateLansoprazoleGastric EmptyingPressureVenous InsufficiencyHydrochloric AcidGastrointestinal MotilityChest PainEsophageal NeoplasmsPostprandial PeriodSeverity of Illness IndexVaricose VeinsProspective StudiesEndoscopy, GastrointestinalDouble-Blind MethodLaryngitisEsophageal Sphincter, LowerCisaprideTime FactorsUltrasonography, Doppler, DuplexEsomeprazoleAsthmaPopliteal VeinVaricose UlcerEsophageal StenosisSaphenous VeinRabeprazoleCase-Control StudiesHistamine H2 AntagonistsEndoscopy, Digestive SystemStomachFemoral VeinRisk FactorsGastrointestinal AgentsDeglutition DisordersPostphlebitic SyndromeEndoscopyUrographyGastric JuiceUreterLaryngeal DiseasesLegUrinary Tract InfectionsPostgastrectomy SyndromesImino AcidsDyspepsiaTechnetium Tc 99m LidofeninGastric FundusSulfoxidesTreatment OutcomeHypopharynxGastritisHelicobacter InfectionsAnastomosis, Roux-en-YPneumonia, AspirationHelicobacter pyloriChronic DiseaseEosinophilic EsophagitisCardiaMetaplasiaDeglutition