@article{ref1,
title="Vascular insufficiency with football injuries about the knee. Report of three cases",
journal="American surgeon",
year="1966",
author="Hardy, J. H. and Duncan, W. L. and Anderson, L. D.",
volume="32",
number="3",
pages="155-160",
abstract="<p>[Abstract unavailable]  Keywords: American football </p> <p>Language: en</p>",
language="en",
issn="0003-1348",
doi="",
url="http://dx.doi.org/"
}