%0 Journal Article %J Reumatologia/Rheumatology %@ 0034-6233 %V 59 %N 3 %D 2021 %F Runowska2021 %T Vitamin D supply in patients with rheumatic diseases in Poland. A pilot study %A Runowska, Marta %A Majewski, Dominik %A Majewska, Katarzyna %A Puszczewicz, Mariusz %P 146-152 %9 journal article %R 10.5114/reum.2021.107430 %U http://dx.doi.org/10.5114/reum.2021.107430