Imtiaz, Sana, Khurram Akhtar, Amjad Mehmood, Hajira Akbar, Nadeem Sadiq, and Andaleeb Ara. “Late Post-Operative Complete Heart Block After Ventricular Septal Defect Repair Procedure”. Pakistan Armed Forces Medical Journal 72, no. SUPPL-3 (November 23, 2022): S635–37. Accessed May 29, 2025. https://www.pafmj.org/PAFMJ/article/view/9569.