@article{ref1,
title="Using a Smartphone while walking: a measure of dual-tasking ability as a falls risk assessment tool",
journal="Age and ageing",
year="2011",
author="Nagai, Koutatsu and Okamoto, Kazuya and Aoyama, Tomoki and Yamada, Minoru and Takemura, Tadamasa and Tanaka, Buichi",
volume="40",
number="4",
pages="516-519",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0002-0729",
doi="10.1093/ageing/afr039",
url="http://dx.doi.org/10.1093/ageing/afr039"
}