Burchfield, D J Elimination of cocaine by pregnant sheep following single or multiple exposures. [electronic resource] - Toxicological sciences : an official journal of the Society of Toxicology Oct 2001 - 157-9 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1096-6080 Standard No.: 10.1093/toxsci/63.2.157 doi Subjects--Topical Terms: AnimalsCatheterization--methodsCatheters, IndwellingCocaine--administration & dosageDose-Response Relationship, DrugFemaleFetus--drug effectsGas Chromatography-Mass SpectrometryGestational AgeHalf-LifeInfusion PumpsInjections, IntravenousMaternal-Fetal ExchangeMetabolic Clearance Rate--drug effectsPregnancyPregnancy, Animal--metabolismRandom AllocationSheepTime Factors