@article{ref1,
title="Hip fracture incidence among the old and very old: A population-based study of 745,435 cases",
journal="Journal of safety research",
year="1991",
author="Stiers, William and Brody, J. A. and Miles, T. P. and Rimm, A. A. and Goldberg, Jack and Jacobsen, S. J.",
volume="22",
number="2",
pages="118-118",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0022-4375",
doi="",
url="http://dx.doi.org/"
}