Efficacy of Hepatitis B Vaccine Boosters Among Neonatally Vaccinated Children in Chongqing
Clinical trial NCT03867643 · UNKNOWN
Trial details
- NCT number
- NCT03867643
- Sponsor
- Children's Hospital of Chongqing Medical University
- Status
- UNKNOWN
- Study type
- OBSERVATIONAL
- Start date
- 2021-07-09
- Primary completion
- 2021-09-09
- Enrollment
- 80
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