@article{ref1,
title="Osteoporosis: a disease pending definition",
journal="Revista Clinica Espanola",
year="1988",
author="González Macías, J. and Riancho Moral, J. A.",
volume="182",
number="2",
pages="61-62",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0014-2565",
doi="",
url="http://dx.doi.org/"
}