Enterohepatic CirculationBile Acids and SaltsBileCholic AcidsChenodeoxycholic AcidCholic AcidIntestinesCholestyramine ResinIntestine, SmallTaurocholic AcidDigitoxinGallbladderCholesterol 7-alpha-HydroxylaseIntestinal AbsorptionOrganic Anion Transporters, Sodium-DependentBiliary FistulaIleumLiverCholecystectomyDeoxycholic AcidCholesterolGlucuronidesBile DuctsFecesCholelithiasisDuodenumLiver CirculationSymportersHelicobacterAdministration, OralChromatography, Thin LayerInjections, IntravenousBiotransformationIntestine, LargeTritiumMetabolic Clearance RateHelicobacter hepaticusChromatography, High Pressure LiquidPhospholipidsCarbon IsotopesCarbon RadioisotopesBlood CirculationReceptors, Cytoplasmic and NuclearBiological TransportRats, Inbred StrainsKineticsModels, BiologicalJejunumTime Factors