Narozny, M, M Zanetti, and N Boos. “Therapeutic Efficacy of Selective Nerve Root Blocks in the Treatment of Lumbar Radicular Leg Pain”. Swiss Medical Weekly 131, no. 0506 (February 10, 2001): 75–80. Accessed April 19, 2024. https://smw.ch/index.php/smw/article/view/25.