@article{ref1,
title="Osteoporotic fracture of the femur in Spain",
journal="Medicina clinica",
year="1989",
author="Navarro Quilis, A.",
volume="92",
number="19",
pages="733-735",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0025-7753",
doi="",
url="http://dx.doi.org/"
}