@article{ref1,
title="Cannabis concerns: increased potency, availability and synthetic analogues",
journal="Current drug abuse reviews",
year="2014",
author="Downey, Luke A. and Verster, Joris Cornelis",
volume="7",
number="2",
pages="67-68",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1874-4737",
doi="",
url="http://dx.doi.org/"
}