@article{ref1,
title="Aggression and violence directed toward physicians",
journal="Journal of general internal medicine",
year="1998",
author="Morrison, J. L. and Lantos, J. D. and Levinson, W.",
volume="13",
number="8",
pages="556-561",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0884-8734",
doi="",
url="http://dx.doi.org/"
}