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Increasing response rates to follow-up questionnaires in health intervention research: Randomized controlled trial of a gift card prize incentive.

Pubmed ID: 
28393632
Year: 
2017
Month: 
Aug
Volume: 
14
Issue: 
4
Citation: 
Morgan AJ, Rapee RM, Bayer JK. Increasing response rates to follow-up questionnaires in health intervention research: Randomized controlled trial of a gift card prize incentive. Clinical trials (London, England) 14 (4) : 381 - 386(2017) PubMed