@article{ref1,
title="The Columbine High School tragedy: one emergency department's experience",
journal="Journal of emergency nursing",
year="1999",
author="Merz, K.",
volume="25",
number="6",
pages="526-528",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0099-1767",
doi="",
url="http://dx.doi.org/"
}