@article{ref1,
title="A hierarchy of aggressive and violent behaviors among psychiatric inpatients",
journal="Hospital and community psychiatry",
year="1992",
author="Morrison, E. F.",
volume="43",
number="5",
pages="505-506",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0022-1597",
doi="",
url="http://dx.doi.org/"
}