@article{ref1,
title="A helmet to the flank",
journal="American family physician",
year="2014",
author="Davis, T. Keefe and Agrawal, Garmina and Tiefenbrunn, Matthew",
volume="90",
number="2",
pages="119-120",
abstract="<p>[Abstract unavailable]  KW: American Football</p> <p>Language: en</p>",
language="en",
issn="0002-838X",
doi="",
url="http://dx.doi.org/"
}