@article{ref1,
title="Student injury rates in public schools",
journal="Journal of school health",
year="2005",
author="Kaldahl, Mark A. and Blair, Earl H.",
volume="75",
number="1",
pages="38-40",
abstract="Abstract unavailable.",
language="",
issn="0022-4391",
doi="",
url="http://dx.doi.org/"
}