@article{ref1,
title="Physical trauma and multiple sclerosis",
journal="Neurology",
year="1993",
author="Sibley, W. A.",
volume="43",
number="10",
pages="1871-1874",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-3878",
doi="",
url="http://dx.doi.org/"
}