C. Ketsuwan, W. Kongchareonsombat, P. Sangkum, K. Kijvikai, T. Sananmuang, and C. Leenanupunth, “Perioperative renal calculus factors affecting percutaneous nephrolithotomy outcomes”, Insight Urol, vol. 40, no. 2, pp. 01–08, Nov. 2019.