@article{ref1,
title="Awareness of gangs can help hospitals head off conflict",
journal="Modern healthcare",
year="1993",
author="Lang, C.",
volume="23",
number="30",
pages="37-37",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0160-7480",
doi="",
url="http://dx.doi.org/"
}