@article{ref1,
title="The double opioid crisis: a call for balance",
journal="Pharmacoepidemiology and drug safety",
year="2019",
author="Vranken, Marjolein J. M. and Schutjens, Marie-Hélène D. B. and Mantel-Teeuwisse, Aukje K.",
volume="28",
number="1",
pages="1-3",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1053-8569",
doi="10.1002/pds.4720",
url="http://dx.doi.org/10.1002/pds.4720"
}