@article{ref1,
title="Falls in the elderly",
journal="Zhonghua Liu Xing Bing Xue Za Zhi",
year="2011",
author="Zhou, Bai-Yu and Yu, Pu-Lin",
volume="32",
number="11",
pages="1068-1073",
abstract="<p>[Abstract unavailable]</p> <p>Language: zh</p>",
language="zh",
issn="0254-6450",
doi="",
url="http://dx.doi.org/"
}