APA (7th ed.) Citation

Hardy, P., Bell, J., & Brocklehurst, P. (2016). Evaluation of the effects of an offer of a monetary incentive on the rate of questionnaire return during follow-up of a clinical trial: A randomised study within a trial. BioMed Central.

Chicago Style (17th ed.) Citation

Hardy, P., J. Bell, and P. Brocklehurst. Evaluation of the Effects of an Offer of a Monetary Incentive on the Rate of Questionnaire Return During Follow-up of a Clinical Trial: A Randomised Study Within a Trial. BioMed Central, 2016.

MLA (9th ed.) Citation

Hardy, P., et al. Evaluation of the Effects of an Offer of a Monetary Incentive on the Rate of Questionnaire Return During Follow-up of a Clinical Trial: A Randomised Study Within a Trial. BioMed Central, 2016.