Links
[1] http://www.dailymail.co.uk/news/article-2815084/Portugal-decriminalised-drugs-Results-Use-teens-doubled-decade-nearly-fifth-15-16-year-olds-using-drugs.html
[2] http://www.rethinkpot.org/tags/portugal
[3] http://www.rethinkpot.org/tags/teens
[4] http://www.rethinkpot.org/tags/youth
[5] http://www.rethinkpot.org/tags/usage
[6] http://www.rethinkpot.org/tags/study