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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Drug Alcohol Depend. 2011 May 6;118(2-3):251–258. doi: 10.1016/j.drugalcdep.2011.04.004

Figure 2.

Figure 2

Alcohol and/or other drug use trajectories based on joint trajectory models; odds of use calculated per year beginning with year of heroin use initiation. N = 341.