In the first worldwide study of its kind, scientists from Toronto's Centre for Addiction and Mental Health (CAMH) found evidence that heavy methamphetamine users might have a higher risk of developing schizophrenia. This finding was based on a large study comparing the risk among methamphetamine users not only to a group that did not use drugs, but also to heavy users of other drugs. The report will be published online on Nov. 8, 2011, at AJP in Advance, the advance edition of the American Journal of Psychiatry, the official journal of the American Psychiatric Association...
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