Galica, Vikiela, Elona Toska, Pietro Saldutto, Giuseppe Galatioto, and Carlo Vicentini. “Use of Transvaginal Ultrasound in Females With Primary Bladder Neck Obstruction. A Preliminary Study”. Archivio Italiano di Urologia e Andrologia 87, no. 2 (July 7, 2015): 158-160. Accessed April 1, 2020. https://pagepressjournals.org/index.php/aiua/article/view/aiua.2015.2.158.