@article{ref1,
title="Hypervitaminosis D and its prevention",
journal="Pediatrii͡a Akusherstvo i Ginekologii͡a",
year="1972",
author="Sidel'nikov, V. M. and Kostin, O. S. and Makarenko, M. O. and Dashkivskaia, V. I. and Kononenko, L. A.",
volume="5",
number="",
pages="25-27",
abstract="<p>[Abstract unavailable]</p><p>Language: uk</p>",
language="uk",
issn="0031-4048",
doi="",
url="http://dx.doi.org/"
}