Sajid, M.T., Ameen, M., Murtaza, B., Alvi, M.S., Khan, Z. and Kiani, F. 2021. Comparison of mean operative time in patients undergoing Ho: YAG laser lithotripsy and pneumatic lithotripsy in ureterorenoscopy for ureteric calculus. Pakistan Journal of Medical Sciences. 37, 2 (Feb. 2021). DOI:https://doi.org/10.12669/pjms.37.2.3049.