@article{ref1,
title="Prevention of femoral neck fractures in the elderly. A Singapore population study",
journal="Geriatrics",
year="1967",
author="Wong, P. C.",
volume="22",
number="4",
pages="156-163",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0016-867X",
doi="",
url="http://dx.doi.org/"
}