Follow-up Study of Population Vaccinated With COVID-19 Vaccine
Clinical trial NCT04972591 · UNKNOWN
Trial details
- NCT number
- NCT04972591
- Sponsor
- Qin Ning
- Status
- UNKNOWN
- Study type
- OBSERVATIONAL
- Start date
- 2021-03-15
- Primary completion
- 2021-12-31
- Enrollment
- 1000
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