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Auteur C. J. HOPFER |
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Périodique
C. J. HOPFER ; KHURI E. ; T. J. CROWLEY ; HOOKS S. | 2002The prevalence of heroin use is rising among young people. We reviewed descriptive and treatment studies of heroin-using youth. Medline and Psychinfo were searched with the following kewords: heroin or opiate; and adolescent or young or juvenile[...]Périodique
C. J. HOPFER ; M. C. STALLINGS ; J. K. HEWITT ; T. J. CROWLEY | 2003ENGLISH : OBJECTIVE: To examine the familial aggregation of marijuana use, abuse, and dependence. METHOD: Adolescents recruited from residential and day treatment programs for youths with conduct and substance problems, matched controls, and a[...]Périodique
J. T. SAKAI ; M. C. STALLINGS ; S. K. MIKULICH-GILBERTSON ; R. P. CORLEY ; S. E. YOUNG ; C. J. HOPFER ; T. J. CROWLEY | 2004ENGLISH : Substance dependence (SD) and antisocial personality disorder (ASPD) are highly comorbid and aggregate in families. Mating assortment may be an important process contributing to this familial aggregation. Hypothesis: Symptom counts o[...]Périodique
C. J. HOPFER ; T. J. CROWLEY ; J. K. HEWITT | 2003ENGLISH : Objective: To review studies of adolescent substance use and abuse with genetically informative designs. Method: Twin and adoption studies of adolescent substance use were searched in Medline using keywords. Results: Of 19 studies th[...]Article : Périodique
J. S. ZEIGER ; B. C. HABERSTICK ; R. P. CORLEY ; M. A. EHRINGER ; T. J. CROWLEY ; J. K. HEWITT ; C. J. HOPFER ; M. C. STALLINGS ; S. E. YOUNG ; S. H. RHEE |Methods: The cross-drug relationship of subjective experiences between alcohol, tobacco, and marijuana and problem drug use behaviors were examined. Data were drawn from 3853 individuals between the ages of 11 and 30 years of age participating i[...]Périodique
C. J. HOPFER ; KHURI E. ; T. J. CROWLEY | 2003ENGLISH : Heroin use among young people has been increasing over the past decade. Since 1993, 1% of U.S. 12th graders have reported using heroin, double the previous annual prevalence rates, which had held steady for 14 years (Johnston et al.,[...]