Breath TestsHelicobacter InfectionsHelicobacter pyloriUreaGastric EmptyingCarbon IsotopesLactuloseAminopyrineCaprylatesHydrogenLactose IntoleranceAnti-Ulcer AgentsExhalationDyspepsiaOmeprazoleCarbon RadioisotopesClarithromycinAmoxicillin2-PyridinylmethylsulfinylbenzimidazolesCarbon DioxideBismuthUreaseGastrointestinal TransitTinidazoleMetronidazoleChylomicron RemnantsLactose Tolerance TestLansoprazoleMalabsorption SyndromesLiver Function TestsFalse Negative ReactionsSulfoxidesSensitivity and SpecificityPeptic UlcerAcetamidesDuodenal UlcerDrug Therapy, CombinationAnti-Bacterial AgentsGastroparesisFurazolidoneIntestine, SmallBlind Loop SyndromeRanitidineRabeprazoleIleocecal ValveLactoseSpectrophotometry, InfraredProton Pump InhibitorsGastroscopyStomachAntitrichomonal AgentsPentanesBreath HoldingMineral WatersSpirulinaLoperamideMethaneExocrine Pancreatic InsufficiencyIrritable Bowel SyndromeGastritisEndoscopy, GastrointestinalSteatorrheaFecesDihydropyrimidine Dehydrogenase DeficiencyPhenolsulfonphthaleinPancreatinGastrointestinal MotilityPropanthelineRespirationReproducibility of ResultsTime FactorsFlatulenceGlutethimideDiphenoxylateLiver CirrhosisIntestinal DiseasesProspective StudiesMucositisGastrointestinal AgentsAchlorhydriaRespiratory MechanicsBenzimidazolesTrioleinAntacidsPancreatic ExtractsIntestinal AbsorptionVolatile Organic CompoundsAcetic AcidBiliopancreatic DiversionPredictive Value of TestsEsomeprazoleSprue, TropicalTidal VolumeMouthTreatment OutcomeErythromycinLactase