@article{ref1,
title="Understanding the opioid analgesics and their effects on skills performance",
journal="Alcohol, drugs and driving",
year="1989",
author="Chesher, G. B.",
volume="5",
number="2",
pages="111-138",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0891-7086",
doi="",
url="http://dx.doi.org/"
}