@article{ref1,
title="The major medical sequelae of opioid addiction",
journal="Drug and alcohol dependence",
year="1980",
author="Cushman, P.",
volume="5",
number="4",
pages="239-254",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0376-8716",
doi="",
url="http://dx.doi.org/"
}