@article{ref1,
title="Available techniques for analyzing impairing drugs in blood and urine",
journal="Journal of safety research",
year="1972",
author="Selzer, M. L. and Clayton, PL",
volume="4",
number="4",
pages="179-188",
abstract="The increased use of licit and illicit psychoactive and sedative drugs has caused concern regarding their potential role in the etiology of traffic accidents.<p />",
language="en",
issn="0022-4375",
doi="",
url="http://dx.doi.org/"
}