Safetxt: a safer sex intervention delivered by mobile phone messaging on sexually transmitted infections (STI) among young people in the UK - protocol for a randomised controlled trial.
Caroline FreeOna L McCarthyMelissa J PalmerRosemary KnightPhil J EdwardsRebecca FrenchPaula BaraitserFord Colin Ian HicksonKaye WellingsIan RobertsJulia V BaileyGraham HartSusan MichieTim ClaytonGeorge B PloubidisJames R CarpenterKatherine M E TurnerKaren M DevriesKimberley PotterPublished in: BMJ open (2020)
12, 19th July 2018.