A Comparative Study of IV Fentanyl versus IV Paracetamol for Pain Relief in Postoperatively After Cardiac Surgery. Medical Forum Monthly, [S. l.], v. 32, n. 4, 2021. Disponível em: https://medicalforummonthly.com/index.php/mfm/article/view/1972.. Acesso em: 16 apr. 2026.