@article{ref1,
title="Sports injuries. Causes",
journal="British journal of hospital medicine",
year="1983",
author="Markham, D. E.",
volume="29",
number="3",
pages="209, 211-209, 211",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1064",
doi="",
url="http://dx.doi.org/"
}