@article{ref1,
title="The effectiveness of preemployment drug screening in the prediction of employment outcome",
journal="Journal of Occupational Medicine",
year="1993",
author="Leigh, J. P.",
volume="35",
number="10",
pages="983-984",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0096-1736",
doi="",
url="http://dx.doi.org/"
}