@article{ref1,
title="Administration of marijuana to heavy and casual marijuana users",
journal="American journal of psychiatry",
year="1971",
author="Meyer, R. E. and Pillard, R. C. and Shapiro, L. M. and Mirin, S. M.",
volume="128",
number="2",
pages="198-204",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-953X",
doi="",
url="http://dx.doi.org/"
}