@article{ref1,
title="Trends in cannabis use, is cannabis use disorder a valid diagnosis?",
journal="International journal on drug policy",
year="2019",
author="Hamilton, Ian and Monaghan, Mark",
volume="69",
number="",
pages="53-54",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0955-3959",
doi="10.1016/j.drugpo.2019.05.009",
url="http://dx.doi.org/10.1016/j.drugpo.2019.05.009"
}