“Once-a-Day Tadalafil Administration Improves the Spermogram Parameters in Fertile Patients”. Archivio Italiano di Urologia e Andrologia 87, no. 3 (September 30, 2015): 210–213. Accessed April 22, 2026. https://www.pagepressjournals.org/aiua/article/view/aiua.2015.3.210.