IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-7-36024 Original Research Paper Efficacy and safety of URSL and Mini-PCNL for treatment of impacted large upper ureteral calculi: a prospective study. N. Jitendra Singh Dr. Dr Kangjam Sholay Meitei Dr. July 2021 10 7 01 02