Szafraniec A, Porada D, Matyjaszek-Matuszek B. Vitamin D deficiency in obese patients with Type 2 diabetes. J Educ Health Sport [Internet]. 2018 Sep. 15 [cited 2023 Jun. 6];8(9):1548-54. Available from: https://apcz.umk.pl/JEHS/article/view/6108