“Comparison between the efficacy and tolerability of On Demand Sildenafil citrate and Tadalafil in Treatment of Erectile Dysfunction in Type 2 Diabetic Patients”, Leb med j, vol. 4, no. 1, pp. 148–153, Jun. 2018, Accessed: Jul. 04, 2025. [Online]. Available: https://lebmedj.elmergib.edu.ly/index.php/LMJ/article/view/74