Study protocol for the optimisation, feasibility testing and pilot cluster randomised trial of Positive Choices: a school-based social marketing intervention to promote sexual health, prevent unintended teenage pregnancies and address health inequalities in England.
Ruth PonsfordElizabeth AllenRona CampbellDiana ElbourneAlison HadleyMaria LohanG J Melendez-TorresCatherine H MercerSteve MorrisHonor YoungChris BonellPublished in: Pilot and feasibility studies (2018)
ISRCTN registry (ISCTN12524938. Registered 03/07/2017).