@article{ref1,
title="Discussion of: The impact of the repeal of Michigan's universal helmet law on traumatic brain injury: A statewide analysis",
journal="American journal of surgery",
year="2018",
author="",
volume="215",
number="3",
pages="428-429",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0002-9610",
doi="10.1016/j.amjsurg.2018.01.053",
url="http://dx.doi.org/10.1016/j.amjsurg.2018.01.053"
}