DOI:
10.1055/s-00000019
Fortschritte der Neurologie · Psychiatrie
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References
Zammit S, Allerbeck P, Andreasson S, Lundberg I.
Lewis G. Shelf reported cannabis use as a risk factor for schizophrenia in Swedisch conscripts of 1969: historical cohort study.
BMJ 2002; 325: 1-5
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