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Chromatography, Liquid
Tandem Mass Spectrometry
Substance Abuse Detection
Electrospray Ionization Mass Spectrometry
Buprenorphine
Nicotine
Methadone
Cotinine
Cocaine
Analgesics, Opioid
Methamphetamine
Glucuronides
Narcotics
Sensitivity and Specificity
Reproducibility of Results
Pregnancy
Meconium
Opioid-Related Disorders
Newborn Infant
Smoking
Co-Publications
27
7
6
5
4
3
2
1
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