Fig. 1: Additives in cocaine samples in Switzerland between 2004 and 2018. | Translational Psychiatry

Fig. 1: Additives in cocaine samples in Switzerland between 2004 and 2018.

From: Cognitive and neuroanatomical impairments associated with chronic exposure to levamisole-contaminated cocaine

Fig. 1

Lines indicate percent frequency of occurrence. Recruitment periods of cocaine users for both studies are shaded in gray. The data were collected in mobile laboratories in Berne, Zurich, and Basel (total n = 771). Data were provided by the Office of the Cantonal Pharmacist, Health & Social Welfare Department State of Berne, Switzerland (Daniel Allemann, Hans-Jörg Helmlin, and André Mürner). *Data only from the first half-year 2018 (January–August)

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