@article{ref1,
title="Concussion may not cause multiple sclerosis",
journal="Annals of neurology",
year="2017",
author="Wijnands, José M. A. and Tremlett, Helen",
volume="82",
number="4",
pages="651-652",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0364-5134",
doi="10.1002/ana.25061",
url="http://dx.doi.org/10.1002/ana.25061"
}