@article{ref1,
title="The risk of hospitalization",
journal="Revista de Medicina de la Universidad de Navarra",
year="1976",
author="Domínguez Carmona, A.",
volume="20",
number="",
pages="5-45",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0556-6177",
doi="",
url="http://dx.doi.org/"
}