@article{ref1,
title="Bias in searching ED patients",
journal="Annals of emergency medicine",
year="1991",
author="Lavoie, F. W.",
volume="20",
number="9",
pages="1047-1047",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}