title: Drug dependence: defining the issues.
authors.affiliation: Alcohol and Drug Abuse Research Program, College of Pharmacy, University of Texas, Austin 78712.
authors.forename: C K
authors.initials: CK
authors.lastname: Erickson
authors.forename: M A
authors.initials: MA
authors.lastname: Javors
authors.forename: W W
authors.initials: WW
authors.lastname: Morgan
mesh_terms: D006801:Humans; D011619:Psychotropic Drugs; D012307:Risk Factors; D019966:Substance-Related Disorders / Q000209:etiology*
chemical_list: D011619:Psychotropic Drugs