Human menstrual blood-derived stem cells as immunoregulatory therapy in COVID-19: A case report and review of the literature

Figure 1 Chest computed tomography images of the patient with coronavirus disease 2019 in different stages of illness. A: Interstitial changes in both lungs and ground-glass opacities (GGOs) in the subpleural area of the right lower lobe on January 19 (Illness day 1); B: Worsening basilar streaky opacities, patchy consolidations, and GGOs in both lungs on January 30 (Illness day 12); C: Significant absorption of patches infiltrating in both lungs on February 4 (Illness day 17); D: Almost no abnormality with a few fibrotic changes left in both lungs on February 19.