Zbalah, Hasan Falah, and Bushra Abbas Al-Zubaidi. “Investigation of Kisspeptin Hormone and Vitamin D3 Levels in Infertile Men”. Jour Med Resh and Health Sci 6, no. 11 (November 13, 2023): 2834–2840. Accessed October 23, 2026. https://www.jmrhs.info/index.php/jmrhs/article/view/769.