Nazarova A. B. “Тhе Necessity of Vitamin D for Fertility in Women of Reproductive Age”. American Journal of Pediatric Medicine and Health Sciences (2993-2149) 2, no. 5 (May 22, 2024): 88–90. Accessed July 6, 2024. https://grnjournal.us/index.php/AJPMHS/article/view/4721.