LactaseLactose IntoleranceLactase-Phlorizin HydrolaseLactose Tolerance TestDisaccharidasesGalactosidasesSucraseLactoseLactose Synthasebeta-GalactosidaseMilkJejunumIntestine, SmallLactose FactorsBreath TestsThiogalactosidesYogurtSymportersHydrogenDelayed Diagnosisalpha-GlucosidasesNitrophenylgalactosidesPrenatal DiagnosisEarly DiagnosisSucrase-Isomaltase ComplexSensitivity and SpecificityMicrovilliGalactosidesDairy ProductsMonosaccharide Transport ProteinsMembrane Transport ProteinsIntestinesMethylgalactosidesIntestinal MucosaDiagnosisShallotsIntestinal AbsorptionMelibioseRadiometric DatingDisaccharidesMalabsorption SyndromesSprue, Tropical