@article{ref1,
title="How (not) to prove that drug checking services facilitate access to difficult-to-reach communities who use drugs, and (not) encourage drug initiation?",
journal="International journal on drug policy",
year="2022",
author="Calle, Paul",
volume="105",
number="",
pages="e103632-e103632",
abstract="[The publisher has not provided an abstract for this article.]<p /> <p>Language: en</p>",
language="en",
issn="0955-3959",
doi="10.1016/j.drugpo.2022.103632",
url="http://dx.doi.org/10.1016/j.drugpo.2022.103632"
}