@article{ref1,
title="Marijuana use and subsequent psychiatric symptoms: a replication",
journal="Comprehensive psychiatry",
year="1973",
author="Altman, H. and Evenson, R. C.",
volume="14",
number="5",
pages="415-420",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0010-440X",
doi="",
url="http://dx.doi.org/"
}