The Effect of Recruiting Inactive Blood Donors Using Different Means : on "Need" or Just Keeping Communication
The Effect of Recruiting Inactive Blood Donors Using Different Means : on "Need" or Just Keeping Communication
14098 inactive donors were randomly divided into three groups according to age, sex, blood donation frequency,time of last donation and blood donation site, one group acted as the control group, one will be recruited by telephone recruitment on "need", and one will just be called for improvement suggestions of blood donor service.
Inclusion Criteria:
Exclusion Criteria: