@article{ref1,
title="Bone mass and fracture",
journal="Calcified tissue international",
year="1991",
author="Mazess, R. B.",
volume="48",
number="2",
pages="143-144",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0171-967X",
doi="",
url="http://dx.doi.org/"
}