If cannabis caused schizophrenia-how many cannabis users may need to be prevented in order to prevent one case of schizophrenia? England and Wales calculations.
Hickman, Matt 1; Vickerman, Peter 1,2; Macleod, John 1; Lewis, Glyn 3; Zammit, Stan 3,4; Kirkbride, James 5; Jones, Peter 5
104(11):1856-1861, November 2009.
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