Julianna Zielska, Eliza Gawron, Paweł Liszka, Aleksandra Kaniak, Kacper Forszt, Adrianna Pielech, Ewa Turczyn, Julia Andrzejewska, Dominika Ziółkowska, and Agata Ogórek. “VITAMIN D — THE IMPACT ON DEVELOPMENT AND TREATMENT OF ATRIAL FIBRILLATION”. International Journal of Innovative Technologies in Social Science, no. 1(49), Feb. 2026, doi:10.31435/ijitss.1(49).2026.4824.