Victoria, Canada: Canadian patients who consume medical cannabis products in compliance with federal law typically reduce or eliminate their use of alcohol, tobacco, and pharmaceutical drugs, according to data published in the Harm Reduction Journal.
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Source: http://bit.ly/2RTqfHu reposted by Cannabis News World . Original article by Paul Armentano, NORML Deputy Director.
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Source : CANADA | Study: Patients Frequently Substitute Medical Cannabis In Place Of Other Controlled Substances