Fitri, Fasihah Irfani, Aldy Safruddin Rambe, and Aida Fitri. 2018. “Correlation Between Lymphocyte CD4 Count, Treatment Duration, Opportunistic Infection and Cognitive Function in Human Immunodeficiency Virus-Acquired Immunodeficiency Syndrome (HIV-AIDS) Patients”. Open Access Macedonian Journal of Medical Sciences 6 (4):643-47. https://doi.org/10.3889/oamjms.2018.152.