Simple and rationale-providing SMS reminders to promote accelerometer use: a within-trial randomised trial comparing persuasive messages

Heino MTJ, Haukkala A, Knittle K, Vasankari T, Hankonen N. Simple and rationale-providing SMS reminders to promote accelerometer use: A within-trial randomised trial comparing persuasive messages. BMC Public Health 2018;18:1352. doi: 10.1186/s12889-018-6121-2.