M. M. Kamalakshi, V. Ramasamy, D. Sadasivan, S. Raveendran, S. Paramasivam, and V. Ganapathy, “Comparison of standard and tubeless percutaneous nephrolithotomy for renal calculi: a prospective randomized control trial”, Int J Clin Trials, vol. 6, no. 4, pp. 185–190, Oct. 2019.