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R. CARLSON ; J. WANG ; H. SIEGAL ; R. FALCK ; J. GUO | 1994Recruiting large samples from "hidden populations" of injection drug and crack-cocaine users who are not in drug treatment has been a troubling methodological problem that has increased in significance in the face of the AIDS pandemic. This arti[...]Périodique
J. GUO ; K. G. HILL ; J. D. HAWKINS ; R. F. CATALANO ; R. D. ABBOTT | 2002ENGLISH : OBJECTIVE: To examine the effects of sociodemographic, family, and peer predictors on the developmental patterns of illicit drug initiation from ages 12 to 21 years. METHOD: A gender-balanced, ethnically diverse urban sample of 808 c[...]
