Li, Zheng, Chen-yang Jiang, and Bao-shan Xu. “A Comparative Study on the Clinical Efficacy of Percutaneous Endoscopic Lumbar Discectomy and Conventional Open Surgery in the Treatment of Lumbar Disc Herniation”. Pakistan Journal of Medical Sciences 40, no. 3 (December 28, 2023). Accessed May 20, 2024. https://www.pjms.org.pk/index.php/pjms/article/view/6678.