COVID-19
COVID-19
 Induced Long-term Immunity in COVID-19 Patients, (NCT04990557) 
Sponsors:
Mahmoud Ramadan mohamed Elkazzaz
Sponsors:
Mahmoud Ramadan mohamed Elkazzaz
IND Enabling 
Phase I
Phase II
Phase III
 Novel Coronavirus Pneumonia, COVID-19, (ChiCTR2000029810) 
Sponsors:
Shenzhen Second People's Hospital
Sponsors:
Shenzhen Second People's Hospital







