@article{ref1,
title="Prevention of fractures in the elderly. A review",
journal="Acta orthopaedica Scandinavica",
year="1995",
author="Johnell, O.",
volume="66",
number="1",
pages="90-98",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-6470",
doi="",
url="http://dx.doi.org/"
}