Al-Ghani, Ahmed, Nabil Albaseer, and Anes Thabet. “A Study of Effect of Catha Edulis on Bioavailability of Sildenafil by Using Everted Sac Method”. Al-Razi University Journal for Medical Sciences 6, no. 2 (July 19, 2022). Accessed May 4, 2024. https://rujms.alraziuni.edu.ye/index.php/rzjournal/article/view/137.