MAKINDE, O. I.; AIGERE, S. E. O.; OYEYEMI, N.; ADESINA, A. D. Single-centre, randomized, clinical trial of opioid-free analgesia versus routine opioid-based analgesia regimen for the management of acute post-operative pain following caesarean section: study protocol. International Journal of Clinical Trials, [S. l.], v. 9, n. 3, p. 187–196, 2022. DOI: 10.18203/2349-3259.ijct20221870. Disponível em: https://www.ijclinicaltrials.com/index.php/ijct/article/view/612. Acesso em: 22 feb. 2026.