PhytosterolsStigmasterolSitosterolsDietary SupplementsCholesterolFlame IonizationAloePlant OilsCorn OilErigeronChromatography, Supercritical FluidEsterificationSterolsCholesterol, LDLNutsDietErythrocyte DeformabilitySqualeneCross-Over StudiesAnticholesteremic AgentsSoybeansChromatography, GasPlant ExtractsVitaminsHypercholesterolemiaCholesterol, DietaryAzetidinesAbsorptionFatty Acids, MonounsaturatedGerbillinaeLipidsIntestinal AbsorptionDeuterium