Safetxt: a pilot randomised controlled trial of an intervention delivered by mobile phone to increase safer sex behaviours in young people.
Ona L McCarthyRebecca S FrenchPaula BaraitserIan RobertsSujit D RathodKaren M DevriesJulia V BaileyPhil J EdwardsKaye WellingsSusan MichieCaroline FreePublished in: BMJ open (2016)
ISRCTN02304709; Results.