Al Umairi, R. S.; Al Salmi, I.; Al Kalbani, J.; Kamona, A.; Al Tai, S.; Al Kindi, F. .; Jose, S.; Khamis, F.; Al Khalili, H.; Al Busaidi, M. COVID-2019 Pneumonia: Severity and Distribution of Lung Changes Observed on the Initial Chest X-Ray As an Indicator of Final Outcomes. Sultan Qaboos Univ Med J 2022, 22, 98-105.