Fatraya, Qien Jovan, Zainal Safri, and Anggia Chairuddin Lubis. “The Relationship Between Elevated Systemic Immune-Inflammatory Index (SII) and the Severity of Coronary Lesions in Chronic Coronary Syndrome (CCS) Patients Undergoing Coronary Angiography at Haji Adam Malik Hospital Medan”. Journal of Society Medicine 4, no. 6 (June 30, 2025): 175–182. Accessed August 15, 2025. https://jsocmed.org/index.php/go/article/view/219.