DOI:
10.1055/s-00000141
Psychiatrie und Psychotherapie up2date
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References
Perkonigg A, Lieb R, Höfler M. et al.
Patterns of cannabis use, abuse and dependence over time: incidence, progression and stability in a sample of 1228 adolescents..
Addiction 1999;
94 (11): 1663-1678
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