@article{ref1,
title="Cause of death in patients attending multiple sclerosis clinics",
journal="Neurology",
year="1991",
author="Sadovnick, A. D. and Eisen, K. and Ebers, G. C. and Paty, D. W.",
volume="41",
number="8",
pages="1193-1196",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0028-3878",
doi="10.1212/WNL.41.8.1193",
url="http://dx.doi.org/10.1212/WNL.41.8.1193"
}