@article{ref1,
title="Measurement of delta 9-tetrahydrocannabinol (THC) in whole blood samples from impaired motorists",
journal="Journal of forensic sciences",
year="1983",
author="Zimmerman, E. G. and Yeager, E. P. and Soares, J. R. and Hollister, L. E. and Reeve, V. C.",
volume="28",
number="4",
pages="957-962",
abstract="The major psychoactive cannabinoid in marihuana, delta 9-tetrahydrocannabinol (THC) was measured in 1792 randomly selected blood specimens from erratic motorists arrested for impairment who submitted to blood alcohol sampling. Of these specimens, 14.4% were positive for THC (greater than or equal to 5.5 ng/mL). In those erratic driver specimens negative for alcohol THC positives rose to 23%. Drivers who used marihuana covered a broad age range. Aliquots of hemolyzed blood (10 microL) were analyzed by a sensitive radioimmunoassay (RIA) not requiring extraction. RIA accuracy and specificity were validated by gas liquid chromatography/mass spectroscopy (GLC/MS) split pair analysis (correlation coefficient = 0.93). This initial experience should facilitate and amplify a program designed to set forth the epidemiology of marihuana use in motorists and possible behavioral correlates.  Keywords: Cannabis impaired driving <p /> <p>Language: en</p>",
language="en",
issn="0022-1198",
doi="",
url="http://dx.doi.org/"
}