Fatraya QJ, Safri Z, Lubis AC. 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. JSocMed [Internet]. 2025 Jun. 30 [cited 2025 Aug. 15];4(6):175-82. Available from: https://jsocmed.org/index.php/go/article/view/219