@incollection{Kupisz-Urbańska21,
author = {Malgorzata Kupisz-Urbańska and Jacek Łukaszkiewicz and Ewa Marcinowska-Suchowierska},
title = {Vitamin D in Elderly},
booktitle = {Vitamin D},
publisher = {IntechOpen},
address = {Rijeka},
year = {2021},
editor = {Öner Özdemir},
chapter = {3},
doi = {10.5772/intechopen.97324},
url = {https://doi.org/10.5772/intechopen.97324}
}