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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: J Subst Abuse Treat. 2012 Jul 2;44(2):145–158. doi: 10.1016/j.jsat.2012.05.006

Figure 1. Comparisons Between Different Treatment Types.

Figure 1

Notes: The arrows point to the treatment type with the more positive outcomes in each comparison. The thickness of each arrow indicates the magnitude of the mean effect size and the number of studies on which it is based, each equally weighted. The treatment types are arrayed from left to right with those to the right generally showing larger positive effects than those to the left with which they are compared.