@article{ref1,
title="Prevention of osteoporotic fractures",
journal="Duodecim: Laaketieteellinen Aikakauskirja",
year="1999",
author="Kannus, Pekka",
volume="115",
number="7",
pages="759-764",
abstract="<p>[Abstract unavailable]</p><p>Language: fi</p>",
language="fi",
issn="0012-7183",
doi="",
url="http://dx.doi.org/"
}