Noureldin, Yasser, Mohamed Elkoushy, and Sero Andonian. “External Validation of the S.T.O.N.E. Nephrolithometry Scoring System”. Canadian Urological Association Journal 9, no. 5-6 (June 15, 2015): 190–5. Accessed April 18, 2024. https://cuaj.ca/index.php/journal/article/view/2652.