@article{ref1,
title="Estrogen replacement therapy and the risk of hip fracture in old age",
journal="Aging (Kurtis)",
year="1996",
author="Boonen, Steven and Pelemans, W. and Dequeker, J.",
volume="8",
number="1",
pages="70-71",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0394-9532",
doi="",
url="http://dx.doi.org/"
}