Abdul Hussein, Zahra A., et al. “The Severity of COVID-19 in Patients With Hematological and Solid Malignancies: A Sample from Medical City in Baghdad”. Journal of the Faculty of Medicine Baghdad, vol. 66, no. 1, Apr. 2024, pp. 1-10, https://doi.org/10.32007/jfacmedbagdad.6612086.