Mekonnen W, Bezabih A, Gullilat D, kassa seyoum. “Healing the Heart”: A Retrospective Analysis of Surgical Management of Chronic Constrictive Pericarditis at Tikur Anbessa Hospital, Addis Ababa, Ethiopia. IJSBAR. 2023;70(1):227-237. Accessed November 3, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/16040