M. Abbas, Zainab, and Hula Y. Fadhil. “A Significant Role of Soluble Programmed Death Ligand(sPDL-1) in a Progressive Infection Among Patients With Omicron SARS-CoV-2”. Al-Nahrain Journal of Science 28, no. 3 (September 15, 2025): 76–83. Accessed May 22, 2026. https://mail.anjs.edu.iq/index.php/anjs/article/view/2953.