@article{ref1,
title="The association between standardized incidence ratio of fall accidents with ambulance responses of elderly people and socio-economic status",
journal="Nippon Koshu Eisei Zasshi",
year="2011",
author="Yoshimoto, Yoshinobu",
volume="58",
number="3",
pages="183-189",
abstract="<p>[Abstract unavailable]</p> <p>Language: ja</p>",
language="ja",
issn="0546-1766",
doi="",
url="http://dx.doi.org/"
}