@article{ref1,
title="Return to play decisions - a highly important albeit unsolved issue",
journal="Journal of sports sciences",
year="2014",
author="Drust, Barry and Impellizzeri, Franco and Meyer, Tim",
volume="32",
number="13",
pages="1205-1205",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0264-0414",
doi="10.1080/02640414.2014.937930",
url="http://dx.doi.org/10.1080/02640414.2014.937930"
}