@article{ref1,
title="Prevention of hip fractures",
journal="Ugeskrift for Laeger",
year="1998",
author="Lauritzen, Jes B. and Lund, B.",
volume="160",
number="22",
pages="3231-3231",
abstract="<p>[Abstract unavailable]</p><p>Language: da</p>",
language="da",
issn="0041-5782",
doi="",
url="http://dx.doi.org/"
}