[\'Medicine, Aga Khan University, Karachi, Pakistan aysha.almas@aku.edu.\', \'Medicine, Aga Khan University, Karachi, Pakistan.\', \'Global Public Health, Karolinska Institutet, Stockholm, Sweden.\']
Acuity level of care as a predictor of case fatality and prolonged hospital stay in patients with COVID-19: a hospital-based observational follow-up study from Pakistan.