Naela Ashraf, Fatima R, Atiq M, Amanullah M. Placement of permanent pacemaker in a low-birth-weight infant with congenital heart block: a case report. J Pak Med Assoc [Internet]. 2023 Apr. 15 [cited 2024 Dec. 3];73(05):1113-6. Available from: https://jpma.org.pk/index.php/public_html/article/view/6674