@article{ref1,
title="Criminality during the life course of heroin addiction",
journal="NIDA research monograph",
year="1984",
author="Ball, J. C. and Nurco, D. N.",
volume="49",
number="",
pages="305-312",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1046-9516",
doi="",
url="http://dx.doi.org/"
}