Canna~Fangled Abstracts Potency trends of Δ9 -THC, cannabidiol and cannabinol in cannabis in the Netherlands: 2005-2015. 2015 Aug 1. doi: 10.1111/add.13082. Niesink RJ1,2, Rigter S1, Koeter MW3, Brunt TM1,3. Author information Abstract BACKGROUND AND…Freedom WaresAugust 1, 2015