@article{ref1,
title="Patterns of drug use: data from the 1985 National Household Survey",
journal="NIDA research monograph",
year="1989",
author="Voss, H. L.",
volume="91",
number="",
pages="33-46",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1046-9516",
doi="",
url="http://dx.doi.org/"
}