@article{ref1,
title="Sleep Deprivation, Drug Use, and Psychiatric Disorders",
journal="American journal of sociology",
year="1972",
author="Roman, P. M.",
volume="77",
number="5",
pages="971-976",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/225234",
url="http://dx.doi.org/10.1086/225234"
}