NCT04366271 JazykNedefinovánoDiagnosis: COVID-19Lung DiseaseSCT types: alloStatus: recruitingTrial ID link: https://clinicaltrials.gov/ct2/show/NCT04366271Ages: 40 to 80Trial address: Hospital Ramón Y Cajal, Madrid, Spain M-607, km. 9, 100, 28034 Madrid, SpainEspaña , Data type: Cord Tissue