Impact of SARS-COV-2 Variants on the Infection Severity among Iraqi Patients. Iraqi Journal of Science, [S. l.], v. 64, n. 7, p. 3263–3272, 2023. DOI: 10.24996/ijs.2023.64.7.7. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7820.. Acesso em: 10 may. 2024.