@article{ref1,
title="First concussion did not increase the risk of subsequent concussion when patients were managed appropriately",
journal="British journal of sports medicine",
year="2019",
author="Shrier, Ian and Piché, Alexendre and Steele, Russell J.",
volume="53",
number="7",
pages="389-390",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0306-3674",
doi="10.1136/bjsports-2018-099104",
url="http://dx.doi.org/10.1136/bjsports-2018-099104"
}