@article{ref1,
title="Fall incidence and fall risk factors in people with rheumatoid arthritis",
journal="Annals of the rheumatic diseases",
year="2009",
author="Smulders, Ellen and Schreven, C. and Weerdesteyn, Vivian and van den Hoogen, F. H. J. and Laan, R. and Van Lankveld, Wim",
volume="68",
number="11",
pages="1795-1796",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-4967",
doi="10.1136/ard.2009.109009",
url="http://dx.doi.org/10.1136/ard.2009.109009"
}