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How strong is the evidence that illicit drug use by young people is an important cause of psychological or social harm? methodological and policy implications of a systematic review of longitudinal, general population studies
John Macleod, Rachel Oakes, Thomas Oppenkowski, Helen Stokes-lampard, Alex Copello, Ilana Crome, George Davey smith, Matthias Egger, Mathew Hickman, Ali Judd
Drugs Education Prevention and Policy, August 2004, Taylor & Francis
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