@article{ref1,
title="NHAMCS: quality of a national emergency department-based information system questioned. National Hospital Ambulatory Medical Care Survey",
journal="Academic emergency medicine",
year="1999",
author="Milzman, D. and O'Brien, C.",
volume="6",
number="6",
pages="666-668",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1069-6563",
doi="",
url="http://dx.doi.org/"
}