Intestinal AbsorptionAbsorptionJejunumCaco-2 CellsBiological AvailabilityStrontium IsotopesIntestine, SmallIntestinesIleumMalabsorption SyndromesBiological TransportCalcium IsotopesDuodenumLymphIntestinal MucosaAdministration, OralAdjuvants, PharmaceuticSitosterolsSerous MembraneXyloseFecesAzetidinesBileP-GlycoproteinCephalexinPerfusionTerfenadineRats, WistarBile Acids and SaltsHartnup DiseaseSelenious AcidEnterocytesLymphatic SystemSymportersTrioleinMicrovilliDipeptidesEnterohepatic Circulationgamma-Glutamyl HydrolaseBiological Transport, ActiveDietRats, Sprague-DawleyShort Bowel SyndromeSkin AbsorptionPermeabilityFlavanonesCholesterolPhytosterolsZincWaterIronSelenic AcidChromatography, High Pressure LiquidEmulsionsCholecalciferolLiverSodiumArbutinChylomicronsDihydroxycholecalciferolsProdrugsOxalic AcidPteroylpolyglutamic AcidsHydroxycholecalciferolsCalcium, DietaryIntestinal SecretionsParenteral Nutrition, HomeHydrogen-Ion ConcentrationGlucuronidesKineticsDose-Response Relationship, DrugArea Under CurveSpectrophotometry, AtomicPhosphorusInjections, IntravenousTime FactorsX-Ray Absorption SpectroscopyDrug InteractionsCalcium RadioisotopesCefiximeProton-Coupled Folate TransporterDiarylheptanoidsDietary FatsCholesterol, DietaryColonAnticholesteremic AgentsForsythiaFolic AcidRats, Inbred StrainsSodium-Glucose Transporter 1Taurocholic AcidFatsCalciumMagnesium OxideMembrane Transport ProteinsPharmacokineticsMicellesCell Membrane PermeabilityPostgastrectomy SyndromesTritium