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Quantititative and qualitative changes in cocaine use among American high school seniors, college students, and young adults

O’Malley, Patrick M; Johnston, Lloyd D; Bachman, Jerald G. (1997). Quantititative and qualitative changes in cocaine use among American high school seniors, college students, and young adults. Substance Use & Misuse. 32(Special Edition - Etiology and prevention of drug use).