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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: J Psychiatr Res. 2015 Mar 21;64:32–39. doi: 10.1016/j.jpsychires.2015.03.011

Figure 2.

Figure 2

Histogram of the observed propensity score distribution in the cohort of propensity score-matched stimulant users and nonusers and pre-matched nonusers.