Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: parent exact "International Society for the Study of Drug Policy, Abstracts" Add to list Conference Paper C3 open access Assessing the harms of cannabis cultivation in Belgium Letizia Paoli and Tom Decorte (UGent) (2013) International Society for the Study of Drug Policy, Abstracts.