@article{ref1,
title="Aggression and multiple sclerosis",
journal="British journal of psychiatry",
year="1991",
author="Van Waveren, L. K. and Barkhof, F. and Scheltens, P.",
volume="159",
number="",
pages="736-736",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0007-1250",
doi="",
url="http://dx.doi.org/"
}