Department of Diagnostic Imaging Emergency Hospital(UMHATEM)"N.I.Pirogov" 1606;
Department of Diagnostic Imaging University Hospital"St George" 4000;
Department of General and Clinical Pathology University Hospital"St George" 4000;
Department of Diagnostic Imaging;
"MBAL-Dobrich"AD 9300;
Department of Clinical Immunology Hospital“Lozenetz” 1407;
Medical Faculty University"St.Kliment Ohridski" 1407;
Coronavirus disease-2019; Ultrasound; Computed tomography; Magnetic resonance imaging; Ground-glass opacity; Acute respiratory distress syndrome; Cytokine storm; COVID-19 reporting and data system; High-resolution computed tomography; Severe acute respiratory syndrome coronavirus 2;