US states with medical marijuana laws and dispensaries were associated with reductions in traffic fatalities, especially among those aged 25 to 44 years based on analysis of data from the 1985–2014 Fatality Analysis Reporting System.

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US states with medical marijuana laws and dispensaries were associated with reductions in traffic fatalities, especially among those aged 25 to 44 years based on analysis of data from the 1985–2014 Fatality Analysis Reporting System.