@article{ref1,
title="Medical problems in Association football",
journal="Practitioner",
year="1981",
author="Sash, L.",
volume="225",
number="1357",
pages="1047-1050",
abstract="<p>[Abstract unavailable]  Keywords: Soccer </p> <p>Language: en</p>",
language="en",
issn="0032-6518",
doi="",
url="http://dx.doi.org/"
}