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. 2019 Sep 18;14:41. doi: 10.1186/s13011-019-0229-y

Fig. 4.

Fig. 4

Percentage of seized substances by age class of the subjects. 14–24 years (n = 1523), 25–34 years (n = 1009), 35–44 years (n = 405), 45–54 years (n = 130) and 55–77 years (n = 21)