@article{ref1,
title="Prevention of osteoporosis and osteoporotic fractures",
journal="Western journal of medicine",
year="1985",
author="Cummings, Steven R. and Nevitt, M. C. and Haber, R. J.",
volume="143",
number="5",
pages="684-687",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0093-0415",
doi="",
url="http://dx.doi.org/"
}