@article{ref1,
title="Change in traffic fatality rates in the first 4 states to legalize recreational marijuana",
journal="JAMA internal medicine",
year="2020",
author="Kamer, Russell S. and Warshafsky, Stephen and Kamer, Gordon C.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="Marijuana use impairs driving,1 but researchers have not yet conclusively determined if a state's legalizing recreational marijuana is associated with traffic fatality rates. Two early studies reported no significant change in roadway deaths following legalization in Colorado and Washington,2,3 whereas a study including Oregon reported a temporary increase.4 A more recent study, including 2017 data, found a statistically significant increase in fatal crashes only after commercial stores opened, suggesting that the effect of legalization may take more time to observe.  Keywords: Cannabis impaired driving <p /> <p>Language: en</p>",
language="en",
issn="2168-6106",
doi="10.1001/jamainternmed.2020.1769",
url="http://dx.doi.org/10.1001/jamainternmed.2020.1769"
}