Chaika, G, A Dnistrianska, and O Astakhova. “Sacral Plexus Block As a Method of Intraoperative Analgesia”. Pain medicine 7, no. 3 (August 4, 2022): 30–35. Accessed March 21, 2026. https://painmedicine.org.ua/index.php/pnmdcn/article/view/343.