Utami Tarigan, Kiking Ritarwan & Irina Kemala Nasution. 2020. “ASSOCIATION BETWEEN CLUSTER OF DIFFERENTIATION 4 COUNT AND THE CLINICAL OUTCOMES OF CEREBRAL TOXOPLASMOSIS IN POSITIVE HIV PATIENTS”. International Journal of Research Science and Management 7 (8):45-50. http://ijrsm.com/index.php/journal-ijrsm/article/view/136.