SMS text pre-notification and delivery of reminder e-mails to increase response rates to postal questionnaires in the SUSPEND trial : a factorial design, randomised controlled trial
Date
2015-07-08
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Citation
Starr, K, McPherson, G, Forrest, M & Cotton, S C 2015, 'SMS text pre-notification and delivery of reminder e-mails to increase response rates to postal questionnaires in the SUSPEND trial : a factorial design, randomised controlled trial', Trials, vol. 16, 295. https://doi.org/10.1186/s13063-015-0808-9