@article{ref1,
title="Commentary on "Predictive factors of fall-related activity avoidance in people with Parkinson disease-a longitudinal study with a 3-year follow-up"",
journal="Journal of neurologic physical therapy",
year="2020",
author="Nordahl, Timothy J. and Ellis, Terry D.",
volume="44",
number="3",
pages="195-196",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1557-0576",
doi="10.1097/NPT.0000000000000322",
url="http://dx.doi.org/10.1097/NPT.0000000000000322"
}