@article{ref1,
title="Psychosis associated with cannabis smoking",
journal="British journal of addiction to alcohol and other drugs",
year="1972",
author="Davison, K. and Wilson, C. H.",
volume="67",
number="3",
pages="225-228",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-0890",
doi="",
url="http://dx.doi.org/"
}