Sharma, P. K.; Aggarwal, V.; Baweja, S.; Nagori, R.; Katti, P.; Chabbra, M. K. Non-Invasive Preoperative Assessment of Ureteral Stone Impaction Using Peri-Calculus Ureteral Thickness on Non-Contrast CT (NCCT) Scan: A Prospective Study. Surgical Review: Int J Surg Trauma Orthoped 2020, 6, 67-71.