@article{ref1,
title="Response to Li et al. (2017): Cannabis use and crash risk in drivers",
journal="Addiction",
year="2017",
author="Rogeberg, Ole and Elvik, Rune",
volume="112",
number="7",
pages="1316-1316",
abstract="<p>[Abstract unavailable]  Keywords: Cannabis impaired driving </p> <p>Language: en</p>",
language="en",
issn="0965-2140",
doi="10.1111/add.13801",
url="http://dx.doi.org/10.1111/add.13801"
}