@article{ref1,
title="Risk assessment tools may predict violence by patients",
journal="Healthcare hazard management monitor",
year="2007",
author="",
volume="21",
number="3",
pages="9-11",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1532-3633",
doi="",
url="http://dx.doi.org/"
}