@article{ref1,
title="Ankle injury risk factors in sports",
journal="Sports medicine",
year="1997",
author="Barker, H. B. and Beynnon, B. D. and Renström, P. A.",
volume="23",
number="2",
pages="69-74",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0112-1642",
doi="",
url="http://dx.doi.org/"
}