Omonovna, T. N., and K. K. Azizovna. “VITAMIN D LEVEL AND ITS RELATIONSHIP WITH CYTOKINE LEVEL IN BRONCHO-OBSTRUCTIVE SYNDROME IN CHILDREN”. Research Focus International Scientific Journal, vol. 5, no. 5, June 2026, pp. 194-00, https://refocus.uz/index.php/rf/article/view/2273.