COVID-19(7) SARS-CoV-2(6) Patient(6) required(6) Cell(6) Infection(6) elevated(6) coronavirus disease(5) overall mortality(4) compassionate-use(4) hyperinflammation(4) Efficacy(4) discharged(4) Allogeneic(4) Cell therapy(4) cDCs(4) administration(4) intravenous(4) acute respiratory syndrome(4) Randomized controlled trial(4) while(4) case sery(4) Effectiveness(4) therapy(4) PaO(4) Critical(4) Lymphocyte count(4) Coronavirus-2(4) Adverse reaction(4) World Health Organization(4)