Limbu, Y. et al. 2016. To stratify complications of percutaneousnephrolithotomy (PCNL) in a single hospital by use of the modified Clavien grading system. Journal of Society of Surgeons of Nepal. 18, 3 (Jul. 2016), 40. DOI:https://doi.org/10.3126/jssn.v18i3.15303.