@article{ref1,
title="Epidemiology of walker-related injuries and deaths in the United States",
journal="American journal of physical medicine and rehabilitation",
year="1995",
author="Charron, P. M. and Kirby, R. Lee and Macleod, D. A.",
volume="74",
number="3",
pages="237-239",
abstract="Abstract unavailable.",
language="",
issn="0894-9115",
doi="",
url="http://dx.doi.org/"
}