S. K. Singh, D. S. Pawar, M. S. Griwan, J. M. Indora, and S. Sharma, “Role of Tamsulosin in Clearance of Upper Ureteral Calculi After Extracorporeal Shock Wave Lithotripsy: A Randomized Controlled Trial”, Urol J, vol. 8, no. 1, pp. 14–20, Mar. 2011.