Re: Gyawali, Sushil; Luitel, Bhoj Raj; Bhattarai, Amit Sharma; Sharma, Uttam Kumar. Comparison of efficacy of intercostal nerve block versus peritract infiltration with 0.25% bupivacaine in percutaneous nephrolithotomy: A prospective randomized clinical trial. Indian Journal of Urology 40(1):p 37-43, Jan-Mar 2024