@article{ref1,
title="Falls, fractures and vitamin D: a never-ending story?",
journal="Nature reviews: rheumatology",
year="2019",
author="Chiodini, Iacopo and Gennari, Luigi",
volume="15",
number="1",
pages="6-8",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1759-4790",
doi="10.1038/s41584-018-0135-0",
url="http://dx.doi.org/10.1038/s41584-018-0135-0"
}