@article{ref1,
title="Nulliparity and osteoporotic fracture risk",
journal="Journal of bone and mineral research",
year="2004",
author="Robbins, J. and Schott, A. and Meunier, P.",
volume="19",
number="2",
pages="338; author reply 339-338; author reply 339",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0884-0431",
doi="10.1359/JBMR.0301236",
url="http://dx.doi.org/10.1359/JBMR.0301236"
}