Abdulgater, Amin, Urszula Przewoźna, Gabriela Stępień, Wiktoria Urowska, Jędrzej Łysiak, Laura Szalewska, Paulina Osuch-Tomaszewska, Magdalena Kossmann, Izabela Kazubek-Fuksiewicz, and Julia Burtowicz. 2026. “VITAMIN D DEFICIENCY IN CHILDREN: CLINICAL MANIFESTATIONS, DIAGNOSTIC DIFFICULTIES, AND CURRENT MANAGEMENT – A LITERATURE REVIEW”. International Journal of Innovative Technologies in Social Science 1 (2(50). https://doi.org/10.31435/ijitss.2(50).2026.5448.