A COMPARISON OF TRAMADOL AND PETHIDINE ANALGESIA ON THE DURATION OF LABOR AND PREGNANCY OUTCOME. Eureka Journal of Health Sciences & Medical Innovation, [S. l.], v. 2, n. 8, p. 206–228, 2026. Disponível em: https://eurekaoa.com/index.php/5/article/view/1393. Acesso em: 14 oct. 2026.