@article{ref1,
title="Vitamin D supplements and the risk of falls",
journal="JAMA internal medicine",
year="2015",
author="Bolland, Mark J. and Grey, Andrew and Reid, Ian R.",
volume="175",
number="10",
pages="1723-1724",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="2168-6106",
doi="10.1001/jamainternmed.2015.3962",
url="http://dx.doi.org/10.1001/jamainternmed.2015.3962"
}