Singhal G, Choudhary S, Saxena AK. Comparison of thoracic segmental spinal anaesthesia and lumbar spinal anaesthesia for percutaneous nephrolithotomy. Int J Res Med Sci [Internet]. 2023 Oct. 30 [cited 2024 Dec. 3];11(11):4147-53. Available from: https://www.msjonline.org/index.php/ijrms/article/view/12750