Ala Hussian, Haider, Alsultani Fadhil Kadhim Jasim, and Mohan Usama Khalaf. 2023. “Relationship Between CT-Finding, Degree of Lung Involvement and Oxygen Saturation in Hospitalized Patients With COVID19”. History of Medicine 9 (1). https://historymedjournal.com/HOM/index.php/medicine/article/view/506.