Napitupulu, Friendina, Harris Hasan, and Abdullah Afif Siregar. “Heart or Grace Score for Diagnostic and Risk Stratification in Acute Coronary Syndrome Patients”. Sumatera Medical Journal 8, no. 1 (January 1, 2025): 24–31. Accessed August 4, 2025. https://idjpcr.usu.ac.id/smj/article/view/17168.