There is one clinical trial.
Evaluation of novel coronavirus induced severe pneumonia by dental pulp mesenchymal stem cells
Description: Kaplan-meier method was used to calculate the median glassy shadow time in all subjectsMeasure: Disppear time of ground-glass shadow in the lungs Time: 14 days
Description: Kaplan-meier method was used to calculate the median lung shadow absorption of all subjects on 7, 14, 28, and 360 daysMeasure: Absorption of Lung shadow absorption by CT Scan-Chest Time: 7, 14, 28 and 360 days
Description: T test was used to compare the blood oxygen values of each subject at day 3, 7 and 14Measure: Changes of blood oxygen Time: 3, 7 and 14 days