@article{ref1,
title="Concussions and brain injuries in youth sports",
journal="Rhode Island medical journal (2013)",
year="2015",
author="Mukand, Jon A. and Serra, Marilyn F.",
volume="98",
number="12",
pages="16-19",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="2327-2228",
doi="",
url="http://dx.doi.org/"
}