Kubicka, M., Wilk, J., Dębiec, P., Cholewa, K., Makarewicz, M., & Szymańska, A. (2023). Vitamin D - do we need suplementation?. Journal of Education, Health and Sport, 27(1), 66–70. https://doi.org/10.12775/JEHS.2023.27.01.006