@article{ref1,
title="Foot impairment--an etiologic factor in falls in the aged",
journal="Journal of the American Podiatry Association",
year="1966",
author="Helfand, A. E.",
volume="56",
number="7",
pages="326-329",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-0538",
doi="",
url="http://dx.doi.org/"
}