COVID-19(23) Chest CT(10) Pneumonia(8) Computed tomography(8) CT(7) ground-glass opacity(5) SARS-CoV-2.(4) tomography(4) evaluated(3) therapy(3) duration of fever(3) outcome(3) scored(3) correlation(3) Analysis(3) Enrollment(3) initial(3) significantly higher(3) percentage(3) Randomized(3) Patient(3) consolidation(3) Multicenter trial(3) emphysema(3) pneumonia.(3) calculated(3) Open-label(3) early treatment group(3) viral clearance(3) the Kaplan-Meier method(3)