DiGregorio, G J Determination of cocaine usage in pregnant women by a urinary EMIT drug screen and GC-MS analyses. [electronic resource] - Journal of analytical toxicology Sep 1994 - 247-50 p. digital Publication Type: Journal Article ISSN: 0146-4760 Standard No.: 10.1093/jat/18.5.247 doi Subjects--Topical Terms: Cocaine--analogs & derivativesEnzyme Multiplied Immunoassay TechniqueFemaleGas Chromatography-Mass SpectrometryHair--chemistryHumansInfant, NewbornMaternal-Fetal Exchange--physiologyMeconium--chemistryPregnancyPregnancy Complications--diagnosisSubstance Abuse Detection--methods