Pinsornsak, Benjawan. “The Effect of Sitting versus Lateral Position during Induction of Spinal Anesthesia for Cesarean Section”. Srinagarind Medical Journal 30, no. 5 (December 5, 2015): 498–503. accessed January 7, 2026. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/43323.