@article{ref1,
title="Demographics of nonagenarians and centenarians with a hip fracture",
journal="Anesthesia and analgesia",
year="2006",
author="Pelavski, Andrés D. and Colomina, María J. and De Miguel, Marcos and Marquez, Esther and Dolors, Castellá and Aranda, Margarita",
volume="103",
number="6",
pages="1597-1599",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-2999",
doi="10.1213/01.ane.0000246354.21634.30",
url="http://dx.doi.org/10.1213/01.ane.0000246354.21634.30"
}