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Hair
Meconium
Fetuses
Substance Abuse Detection
Enzyme-Linked Immunosorbent Assay
Cocaine
Street Drugs
Narcotics
Fatty Acids
Ethanol
Newborn Infant
Infants
Pregnancy
Maternal-Fetal Exchange
Cocaine-Related Disorders
Pregnancy Complications
Substance-Related Disorders
Biological Markers
Crime
Canada
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