Fig. 4
From: Atypical presentations of coronavirus disease 2019 (COVID-19) from onset to readmission
4a-4b: Moderate COVID-19, non-re-detectable positive patient. There are multiple pure and mixed ground-glass opacities under double lung pleural. The total scores of involved zones in the bilateral lung is 4. 4c-4d: Moderate COVID-19, re-detectable positive patient. There are multiple pure ground-glass opacities under upper and lower lobe pleural of the right lung. The total scores of involved zones in the bilateral lung is 2