@article{ref1,
title="The martial arts and the caucasian knee: "a tiger by the tail"",
journal="Journal of sports medicine",
year="1975",
author="Klein, K. K.",
volume="3",
number="1",
pages="44-47",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-4201",
doi="",
url="http://dx.doi.org/"
}