@article{ref1,
title="Describing Prescription Opioid Adherence among Individuals with Chronic Pain using Urine Drug Testing",
journal="Pain management nursing",
year="2014",
author="Matteliano, Deborah and Chang, Yu-Ping",
volume="16",
number="1",
pages="51-59",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1524-9042",
doi="10.1016/j.pmn.2014.04.001",
url="http://dx.doi.org/10.1016/j.pmn.2014.04.001"
}