Effectiveness of SMS messaging for diarrhoea measurement: a factorial cross-over randomised controlled trial.
Ryan T RegoSamuel WatsonPhilbert IshengomaPhilemon LangatHezekiah Pireh OtienoRichard LilfordPublished in: BMC medical research methodology (2020)
The protocol was prospectively registered on ISRCTN on the 20th of March 2019 under number ISRCTN11410773 .