Items where Author is "Classen, Timothy"

Ali, Mir M. and Dowd, Bill and Classen, Timothy and Mutter, Ryan and Novak, Scott P. (2017) Prescription drug monitoring programs, nonmedical use of prescription drugs, and heroin use : Evidence from the National Survey of Drug Use and Health. Addictive Behaviors, 69. pp. 65-77. ISSN 0306-4603