@article{ref1,
title="Drug abuse deaths in nine cities: a survey report",
journal="NIDA research monograph",
year="1979",
author="Gottschalk, L. A. and McGuire, F. L. and Heiser, J. F. and Dinovo, E. C. and Birch, Harry",
volume="29",
number="",
pages="1-172",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1046-9516",
doi="",
url="http://dx.doi.org/"
}