@article{ref1,
title="Clues to knee injuries in athletes",
journal="American family physician",
year="1973",
author="Garrick, J. G.",
volume="8",
number="4",
pages="128-133",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-838X",
doi="",
url="http://dx.doi.org/"
}