Singhal, Geetanjali, Swati Choudhary, and Arun Kumar Saxena. “Comparison of Thoracic Segmental Spinal Anaesthesia and Lumbar Spinal Anaesthesia for Percutaneous Nephrolithotomy”. International Journal of Research in Medical Sciences 11, no. 11 (October 30, 2023): 4147–4153. Accessed December 12, 2024. https://www.msjonline.org/index.php/ijrms/article/view/12750.