Message Framing on Recruiting Rh-D Negative Blood Donors
Clinical trial NCT04484896 · UNKNOWN
Trial details
- NCT number
- NCT04484896
- Sponsor
- Guangzhou Blood Center
- Status
- UNKNOWN
- Phase
- Not Applicable
- Study type
- INTERVENTIONAL
- Start date
- 2020-07-22
- Primary completion
- 2020-07-29
- Enrollment
- 1082
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