Ponsford, Ruth ;
Bragg, Sara ;
Allen, Elizabeth...
Ponsford , R , Bragg , S , Allen , E , Tilouche , N , Meiksin , R , Emmerson , L , Van Dyck , L , Opondo , C , Morris , S , Sturgess , J , Brocklehurst , E , Hadley , A , Melendez-Torres , GJ , Elbourne , D , Young , H , Lohan , M , Mercer , C , Campbell , R & Bonell , C 2021 , ' A school-based social-marketing intervention to promote sexual health in English secondary schools: the Positive Choices pilot cluster RCT ' , Public Health Research , vol. 9 , no. 1 . https://doi.org/10.3310/phr09010.
,
2021