Cook, J., Cook, J., Bongard, E., Heneghan, C., & Butler, C. (2023). Conditional versus non-conditional incentives to maximise return of participant completed questionnaires in clinical trials: A cluster randomised study within a trial. BioMed Central.
Citace podle Chicago (17th ed.)Cook, J., JA Cook, E. Bongard, C. Heneghan, a CC Butler. Conditional Versus Non-conditional Incentives to Maximise Return of Participant Completed Questionnaires in Clinical Trials: A Cluster Randomised Study Within a Trial. BioMed Central, 2023.
Citace podle MLA (9th ed.)Cook, J., et al. Conditional Versus Non-conditional Incentives to Maximise Return of Participant Completed Questionnaires in Clinical Trials: A Cluster Randomised Study Within a Trial. BioMed Central, 2023.
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