Wardle Heather, Bramley Stephanie, Norrie Caroline, Manthorpe Jill
London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, London WC1H 9SH, United Kingdom.
NIHR Health and Social Care Workforce Research Unit, The Policy Institute at King's, King's College London, Strand, London WC2R 2LS, United Kingdom.
Addict Behav. 2019 Jun;93:180-193. doi: 10.1016/j.addbeh.2019.01.017. Epub 2019 Jan 26.