@article{ref1,
title="Forty-six cases of psychosis in cannabis abusers",
journal="International journal of the addictions",
year="1972",
author="Bernhardson, G. and Gunne, L. M.",
volume="7",
number="1",
pages="9-16",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-773X",
doi="",
url="http://dx.doi.org/"
}