“A COMPARISON OF TRAMADOL AND PETHIDINE ANALGESIA ON THE DURATION OF LABOR AND PREGNANCY OUTCOME”, EJHSMI, vol. 2, no. 8, pp. 206–228, Aug. 2026, Accessed: Oct. 14, 2026. [Online]. Available: https://eurekaoa.com/index.php/5/article/view/1393