Jdah Fengan, A. tran. 2026. Cytotoxic T-Lymphocyte-Associated Protein 4 Activity and Epstein-Barr Virus Infection in Thalassemia Patients from Najaf Province: A Cross-Sectional Study. Journal of Progressive Medical Sciences. 2, 5 (May 2026), 90–106. DOI:https://doi.org/10.63939/dkwph612.