Al-Zubaidi, E. M. A., and A. T. S. Alsamarai. “Evaluation of the Relationship Between Vitamin D3 Level and Sex Hormones in Women With PCOS”. International Journal of Health Sciences, vol. 6, no. S9, Sept. 2022, pp. 1105-14, doi:10.53730/ijhs.v6nS9.12419.