IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-11-7-42698 Original Research Paper A Prospective study to compare the efficacy and safety between Modified Supine Lithotomy Percutaneous Nephrolithotomy versus Prone Percutaneous Nephrolithotomy Abhishek Johari Dr. July 2022 11 7 01 02