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. Author manuscript; available in PMC: 2012 Jan 1.
Published in final edited form as: Addiction. 2010 Oct 19;106(1):215–224. doi: 10.1111/j.1360-0443.2010.03129.x

Figure 2.

Figure 2

Best fitting common pathway model for POSITIVE subjective effects to alcohol, tobacco, and marijuana. Variance component estimates (95% confidence intervals) are shown for the latent common factor and unstandardized path coefficients for each observed variable. A, indicates additive genetic influences; E, indicates non-additive genetic influences and includes measurement error;