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Hser, Yih-Ing; Huang, David; Chou, Chih-Ping; Anglin, M. Douglas – Evaluation Review, 2007
This study investigates trajectories of heroin use and subsequent consequences in a sample of 471 male heroin addicts who were admitted to the California Civil Addict Program in 1964-1965 and followed over 33 years. Applying a two-part growth mixture modeling strategy to heroin use level during the first 16 years of the addiction careers since…
Descriptors: Substance Abuse, Narcotics, Drug Addiction, Followup Studies