@article{ref1,
title="Risk factors for hip fracture",
journal="New England journal of medicine",
year="1995",
author="Cooper, Colin and Barker, D. J.",
volume="332",
number="12",
pages="814-815",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJM199503233321210",
url="http://dx.doi.org/10.1056/NEJM199503233321210"
}