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 Free, Ona L McCarthy, Melissa J Palmer, Rosemary Knight, Phil Edwards, Rebecca French, Paula Baraitser, Ford Colin Ian Hickson, Kaye Wellings, Ian Roberts, Julia V Bailey, Graham Hart, Susan Michie, Tim Clayton, George B Ploubidis, James R Carpenter, Katy M E Turner, Karen Devries, Kimberley Potter
BMJ Open Mar 2020, 10 (3) e031635; DOI: 10.1136/bmjopen-2019-031635