@article{ref1,
title="Cause-specific mortality among individuals hospitalized with opioid-related conditions: A retrospective cohort study",
journal="Annals of epidemiology",
year="2014",
author="Veldhuizen, Scott and Callaghan, Russell C.",
volume="24",
number="8",
pages="620-624",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1047-2797",
doi="10.1016/j.annepidem.2014.06.001",
url="http://dx.doi.org/10.1016/j.annepidem.2014.06.001"
}