R. S. Al-Umairi, J. Al-Kalbani, S. Al-Tai, A. Al-Abri, F. Al-Kindi, and A. Kamona, “COVID-19 Associated Pneumonia: A review of chest radiograph and computed tomography findings”, Sultan Qaboos Univ Med J, vol. 21, no. 1, pp. e4–11, Mar. 2021.