Article
Decline in genetic influence on the co-occurrence of alcohol, marijuana, and nicotine dependence symptoms from age 14 to 29.
The American journal of psychiatry - 1 Oct 2012
Vrieze Scott I, Hicks Brian M, Iacono William G, McGue Matt
Abstract excerpt
OBJECTIVE: Cross-sectional studies have demonstrated high rates of comorbidity among substance use disorders. However, few studies have examined the developmental course of incident comorbidity and how it changes from adolescence to adulthood. The authors examine patterns of comorbidity among substance use disorders to gain insight into the effect of shared versus specific etiological influences on measures of...
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