Breath TestsHelicobacter InfectionsHelicobacter pyloriUreaGastric EmptyingCarbon IsotopesLactuloseAminopyrineCaprylatesHydrogenLactose IntoleranceAnti-Ulcer AgentsExhalationDyspepsiaOmeprazoleCarbon RadioisotopesClarithromycinAmoxicillin2-PyridinylmethylsulfinylbenzimidazolesCarbon DioxideBismuthUreaseGastrointestinal TransitTinidazoleMetronidazoleChylomicron RemnantsLactose Tolerance TestLansoprazoleMalabsorption SyndromesLiver Function TestsFalse Negative ReactionsSulfoxidesPeptic UlcerAcetamidesDuodenal UlcerSensitivity and SpecificityDrug Therapy, CombinationGastroparesisFurazolidoneIntestine, SmallBlind Loop SyndromeAnti-Bacterial AgentsRanitidineRabeprazoleIleocecal ValveLactoseSpectrophotometry, InfraredProton Pump InhibitorsGastroscopyStomachAntitrichomonal AgentsPentanesBreath HoldingMineral WatersSpirulinaLoperamideExocrine Pancreatic InsufficiencyIrritable Bowel SyndromeGastritisMethaneEndoscopy, GastrointestinalSteatorrheaDihydropyrimidine Dehydrogenase DeficiencyPhenolsulfonphthaleinPancreatinFecesGastrointestinal MotilityPropanthelineRespirationFlatulenceGlutethimideDiphenoxylateReproducibility of ResultsMucositisIntestinal DiseasesGastrointestinal AgentsLiver CirrhosisAchlorhydriaRespiratory MechanicsBenzimidazolesTrioleinProspective StudiesAntacidsPancreatic ExtractsTime FactorsIntestinal AbsorptionVolatile Organic CompoundsAcetic AcidBiliopancreatic DiversionEsomeprazoleSprue, TropicalTidal VolumePredictive Value of TestsErythromycinMouthLactase