HARMINDER SINGH. Efficacy of Amitriptyline Versus Propranolol for prophylaxis of Migraine: A Comparative study. International Journal of Health and Clinical Research, [S. l.], v. 4, n. 24, p. 166–169, 2021. Disponível em: https://ijhcr.com/index.php/ijhcr/article/view/3789. Acesso em: 7 feb. 2026.