Labuschagne HC, Venturas J, Moodley H. Risk stratification of hospital admissions for COVID-19 pneumonia by chest radiographic scoring in a Johannesburg tertiary hospital. S Afr Med J [Internet]. 2023 Feb. 1 [cited 2026 Jan. 31];113(2):75-83. Available from: https://samajournals.co.za/index.php/samj/article/view/733