@article{ref1,
title="Assessment of fracture risk and its application to screening for postmenopausal osteoporosis. Report of a WHO Study Group",
journal="World Health Organization technical report series",
year="1994",
author="",
volume="843",
number="",
pages="1-129",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0512-3054",
doi="",
url="http://dx.doi.org/"
}