Grizhimalsky, Yevhenii, Andrii Harha, and Yevhenii Sulimenko. “Conversion of Epidural Analgesia to Anesthesia for Cesarean Section”. Pain medicine 6, no. 1 (April 24, 2021): 4–7. Accessed June 21, 2021. https://painmedicine.org.ua/index.php/pnmdcn/article/view/245.