@article{ref1,
title="Sleep and psychiatric disorder",
journal="Canadian Psychiatric Association Journal",
year="1968",
author="Ward, J. A.",
volume="13",
number="1",
pages="31-48",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0008-4824",
doi="",
url="http://dx.doi.org/"
}