Comparative Study of Intra-operative Hemodynamic Changes During Cesarean Section Under Spinal Block by Using Bupivacaine Alone Versus Bupivacaine with Fentanyl. Pakistan Journal of Medical & Cardiological Review, [S. l.], v. 5, n. 1, p. 388–393, 2026. Disponível em: https://pakjmcr.com/index.php/1/article/view/523. Acesso em: 12 sep. 2026.