Samreen Mushtaq, Abdul Sattar, Sadia Anjum. Correlation between Oxygen Saturation of patient and Severity Index of Covid 19 Pneumonia on CT. Pakistan Journal of Medical & Health Sciences [Internet]. 2022 Jul. 30 [cited 2024 Nov. 21];16(07):93. Available from: https://mail.pjmhsonline.com/index.php/pjmhs/article/view/1783