| http://www.w3.org/ns/prov#value | - This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Received 23 January 2014; revised 21 February 2014; accepted 15 March 2014 ABSTRACT Background: Despite progressive increasing of drug use or drug addiction particularly with cannabis in young people, knowledge is limited about their consequences on mental health
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