THE FREQUENCY OF ARRHYTHMIAS AMONG CHILDREN WITH CONGENITAL HEART DISEASE PRESENTING AT A TERTIARY CARE HOSPITAL OF LAHORE, PAKISTAN. Frontier in Medical and Health Research, [S. l.], v. 2, n. 4, p. 118–125, 2024. Disponível em: https://fmhr.net/index.php/fmhr/article/view/1745.. Acesso em: 1 jun. 2026.