@article{ref1,
title="The co-morbidities of cannabis use: a comment on Degenhardt et al",
journal="Addiction",
year="2001",
author="Fergusson, D. M.",
volume="96",
number="12",
pages="1861-1863",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0965-2140",
doi="",
url="http://dx.doi.org/"
}