@article{ref1,
title="What are the true costs of emergency department services?",
journal="Annals of emergency medicine",
year="2013",
author="Williams, Robert M.",
volume="62",
number="5",
pages="552-553",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0196-0644",
doi="10.1016/j.annemergmed.2013.05.016",
url="http://dx.doi.org/10.1016/j.annemergmed.2013.05.016"
}