@article{ref1,
title="Guidelines for trauma care systems. American College of Emergency Physicians",
journal="Annals of emergency medicine",
year="1993",
author="",
volume="22",
number="6",
pages="1079-1100",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}