@article{ref1,
title="Epidemiology of Playground Injuries in an Urban Public School System Resulting in Emergency Department Evaluation",
journal="Journal of trauma",
year="2006",
author="Ryan, L. M. and Harris, Kathleen and Wright, J. L.",
volume="60",
number="6",
pages="1387-1388",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0022-5282",
doi="",
url="http://dx.doi.org/"
}