Bogacka, A.; Wadowska, Z.; Lenart, J.; Janik, N.; Janowiak, J.; Kiersznowska, N.; Buchman, M.; Górowska, A.; Sobiś, M.; Miłek, B. Vitamin D and Reproductive Dysfunction in Polycystic Ovary Syndrome: Metabolic, Hormonal and Fertility Implications. Qual Sport 2025, 48, 67048.