4 mayo 2015
As the realities of legalized marijuana take hold in four states and the District of Columbia, legislators and regulators could learn a lot from the successes – and failures – of the tobacco and alcohol industries in keeping their harmful products out of the hands of children and adolescents.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6ltz1Y6XBtM/150504082143.htm
