@article{ref1,
title="A longitudinal comparative study of falls in persons with knee arthroplasty and persons with or at high risk for knee osteoarthritis",
journal="Age and ageing",
year="2018",
author="Riddle, Daniel L. and Golladay, Gregory J.",
volume="47",
number="2",
pages="318-318",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0002-0729",
doi="10.1093/ageing/afx003",
url="http://dx.doi.org/10.1093/ageing/afx003"
}