Breath TestsLactuloseLactose IntoleranceHydrogenLactose Tolerance TestGastrointestinal TransitLactoseFalse Negative ReactionsGastrointestinal MotilityIntestine, SmallLactaseHydrogen BondingHydrogen PeroxideHelicobacter InfectionsHelicobacter pyloriUreaCarbon IsotopesGastric EmptyingHydrogen SulfideAminopyrineCaprylatesAnti-Ulcer AgentsExhalationCarbon RadioisotopesDyspepsiaOmeprazoleClarithromycinCarbon DioxideAmoxicillin2-PyridinylmethylsulfinylbenzimidazolesBismuthUreaseTinidazoleMetronidazoleChylomicron RemnantsMalabsorption SyndromesLansoprazoleLiver Function TestsSensitivity and SpecificitySulfoxidesAcetamides