@article{ref1,
title="Defusing gang activity: different hospitals take different approaches",
journal="Hospital security and safety management",
year="1999",
author="",
volume="19",
number="11",
pages="1-4",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0745-1148",
doi="",
url="http://dx.doi.org/"
}