@article{ref1,
title="Vitamin D does not prevent fractures and falls",
journal="BMJ evidence-based medicine",
year="2019",
author="Heneghan, Carl and Mahtani, Kamal R.",
volume="24",
number="4",
pages="147-148",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="2515-446X",
doi="10.1136/bmjebm-2018-111129",
url="http://dx.doi.org/10.1136/bmjebm-2018-111129"
}