KUMAR, A.; MISHRA, P. K.; SHUKLA, S. A randomized, controlled study to compare the effects of intravenous labetalol and esmolol on haemodynamic changes during laryngoscopy and intubation. International Journal of Research in Medical Sciences, [S. l.], v. 5, n. 9, p. 4003–4007, 2017. DOI: 10.18203/2320-6012.ijrms20173971. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/3652. Acesso em: 14 oct. 2025.