Article

Melchior, Maria and Nakamura, Aurélie and Bolze, Camille and Hausfater, Félix and El Khoury, Fabienne and Mary-Krause, Murielle and Azevedo Da Silva, Marine (2019) Does liberalisation of cannabis policy influence levels of use in adolescents and young adults? A systematic review and meta-analysis. BMJ Open , 9 , (7) .