@article{ref1,
title="Acquired brain injury - heading and soccer",
journal="Medicine and science in sports and exercise",
year="2006",
author="Mehta, AR",
volume="38",
number="5 Suppl",
pages="S133-4",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0195-9131",
doi="",
url="http://dx.doi.org/"
}