ASHRAF, HIRA; FATIMA, TURAB; ASHRAF, IFRA; MAJEED, SADAF. Effectiveness of modified Valsalva maneuver by using wide bore syringe for emergency treatment of supraventricular tachycardias: Findings from Pakistan. Pakistan Journal of Medical Sciences, [S. l.], v. 39, n. 3, 2023. DOI: 10.12669/pjms.39.3.6725. Disponível em: https://pjms.org.pk/index.php/pjms/article/view/6725. Acesso em: 10 dec. 2025.