@article{ref1,
title="Athletic injuries in children",
journal="Pediatric clinics of North America",
year="1965",
author="Siffert, Robert S. and Levy, R. N.",
volume="12",
number="4",
pages="1027-1037",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-3955",
doi="",
url="http://dx.doi.org/"
}