J. Zebua, A. Nasution, A. Ketaren, H. Hasan, and N. Akbar, “PEACH Score Validation as a Predictor of Postoperative In-hospital Mortality in Adult Congenital Heart Disease Patients at Haji Adam Malik General Hospital Medan”, IJC, vol. 44, no. 2, pp. 61-7, Mar. 2024.