@article{ref1,
title="The knockout game: Recreational assault and traumatic brain injury",
journal="Lancet",
year="2014",
author="Zonfrillo, Mark R. and Arbogast, Kristy B. and Fein, Joel A.",
volume="383",
number="9916",
pages="513-514",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0140-6736",
doi="10.1016/S0140-6736(14)60184-7",
url="http://dx.doi.org/10.1016/S0140-6736(14)60184-7"
}