LONDON, England, April 19 -- The American Journal of Drug and Alcohol Abuse, a journal that says it features public policy, epidemiology, neurobiology and treatment of addictive disorders, published research articles on the following topics in its Vol. 50, Issue 1 edition:

Perspective:

* Are you thinking what I'm thinking? Defining what we mean by "polysubstance use."

* Expanding access to substance misuse services through emergency medical servi . . .

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