Some preliminary studies have suggested that medical marijuana legalization might be associated with decreased prescription opioid use and overdose deaths, but researchers don't have enough evidence yet to confirm this finding. For example, one NIDA-funded study suggested a link between medical marijuana legalization and fewer overdose deaths from prescription opioids. 1 But this study didn't show that medical marijuana legalization caused the decrease in deaths or that pain patients changed their drug-taking behavior. 2,3 A more detailed NIDA-funded analysis showed that legally protected medical marijuana dispensaries, not just medical marijuana laws, were also associated with a decrease in the following: 4
In some countries formalized training and minimum education standards exist, although these are not necessarily uniform within or between countries. For example, in Australia the currently self-regulated status of the profession (as of April 2008) results in different associations setting different educational standards, and subsequently recognising an educational institution or course of training. The National Herbalists Association of Australia is generally recognised as having the most rigorous professional standard within Australia.  In the United Kingdom , the training of medical herbalists is done by state funded Universities. For example, Bachelor of Science degrees in herbal medicine are offered at Universities such as University of East London , Middlesex University , University of Central Lancashire , University of Westminster , University of Lincoln and Napier University in Edinburgh at the present.  [ citation needed ]
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