@article{ref1,
title="Reply to Beckson: "Cannabis, crashes, and blood: challenges for observational research" (Beckson, 2019)",
journal="Addiction",
year="2019",
author="Brubacher, J. R. and MacDonald, S. and Mann, R. E. and Eppler, J. and Asbridge, M. and Chan, H.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="<p>[Abstract unavailable]</p>  Keywords: Cannabis impaired driving  <p>Language: en</p>",
language="en",
issn="0965-2140",
doi="10.1111/add.14913",
url="http://dx.doi.org/10.1111/add.14913"
}