@article{ref1,
title="Defending your life. How to manage violent patients and scenes",
journal="JEMS: a journal of emergency medical services",
year="1992",
author="Fredrick, L.",
volume="17",
number="6",
pages="64-67",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0197-2510",
doi="",
url="http://dx.doi.org/"
}