Łopuszyńska, A. M., Pawlicki, B., Pawlicki, M. M., Lorenc, K., Kozioł, M., & Misztal, Z. (2019). Effect of vitamin d on treatment of malignant tumor. Journal of Education, Health and Sport, 9(8), 758–762. Retrieved from https://apcz.umk.pl/JEHS/article/view/7228