The Effect of Message Framing on Blood Donation-Study 2
NCT03741387
·
clinicaltrials.gov ↗
NA
Phase
COMPLETED
Status
795
Enrollment
OTHER_GOV
Sponsor class
Conditions
Rh Negative Blood Donor
Interventions
OTHER:
Gain-frame questionnaire
OTHER:
Loss-frame questionnaire
Sponsor
Guangzhou Blood Center