@article{ref1,
title="The epidemiology of drug abuse: current issues. Indicators of drug abuse--drug-involved death",
journal="NIDA research monograph",
year="1977",
author="Gottschalk, L. A.",
volume="",
number="10",
pages="98-122",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1046-9516",
doi="",
url="http://dx.doi.org/"
}