@article{ref1,
title="Considerations on the relationship of injury and multiple sclerosis",
journal="Medicina clinica",
year="1965",
author="De Portugal Alvarez, J. and Fereres, J. S.",
volume="44",
number="4",
pages="252-255",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0025-7753",
doi="",
url="http://dx.doi.org/"
}