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GMITRZUK, Julita, MALINKA, Zuzanna, WIŚNIEWSKA, Katarzyna, JACHYMEK, Anna, OPATOWSKA, Martyna, JAKUBIEC, Joanna, KUCHARSKI, Tomasz and PIOTROWSKA, Marta. Vitamin D Deficiency. The place of calcifediol in the treatment of vitamin D deficiency - literature review. Quality in Sport. Online. 5 July 2024. Vol. 15, p. 52009. [Accessed 6 July 2024]. DOI 10.12775/QS.2024.15.52009.