Sahin, Mehmet Oguz, Volkan Sen, Bora Irer, and Guner Yildiz. “Can Negative Ureteroscopy Be Predicted in Ureteral Stone Treatment?”. Canadian Urological Association Journal 14, no. 5 (November 29, 2019): E209-13. Accessed June 12, 2021. https://cuaj.ca/index.php/journal/article/view/6026.