The Effect of Message Framing on Blood Donation-Study 1
NCT03741413
·
clinicaltrials.gov ↗
NA
Phase
COMPLETED
Status
2074
Enrollment
OTHER_GOV
Sponsor class
Conditions
Rh Negative Blood Donor
Interventions
OTHER:
Gain-frame SMS
OTHER:
Loss-frame SMS
OTHER:
Control SMS
Sponsor
Guangzhou Blood Center