@article {5168,
	title = {Comparisons of Cocaine-Only, Opioid-Only, and Users of Both Substances in the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC).},
	journal = {Substance use \& misuse},
	year = {2016},
	month = {2016 Mar 22},
	pages = {1-12},
	abstract = {Cocaine and opioid co-use is a notable public health concern, but little is known about correlates of this behavior. Most prior findings come from treatment samples and concern cocaine and heroin. Findings from a nationally representative sample involving primarily prescription opioid misuse would expand knowledge.},
	issn = {1532-2491},
	doi = {10.3109/10826084.2015.1122063},
	author = {Leeman, Robert F and Sun, Qisi and Bogart, Devorah and Beseler, Cheryl L and Sofuoglu, Mehmet}
}
