Wichachai, Wichita. “Comparison Fascia Iliaca Block between 30 and 40 ml of 0.33% Bupivacaine in 48-hour Postoperative Morphine Consumption for Hip Surgery in Elderly Patients”. Thai Journal of Anesthesiology 47, no. 2 (February 3, 2021): 79–84. accessed September 22, 2026. https://he02.tci-thaijo.org/index.php/anesthai/article/view/249142.