START
Hoch, E., Preuss, U.W., Ferri. M., Simon, R., European Addiction Research 22(5):233-242
Félix, Sónia et al., International Journal of Drug Policy , Volume 39 , 121 - 129
Atkinson, Michael P. et al., International Journal of Drug Policy , Volume 39 , 43 - 51
Davenport, Steven et al., International Journal of Drug Policy , Volume 37 , 60 - 69
Werb, D. et al., International Journal of Drug Policy , Volume 28 , 1 - 9