“…For example, in Germany, minority patients had a more severe course of drug addiction in one study (Reimer et al, 2007), whereas in a study in Israel, former Soviet Union immigrants did not have more severe drug problems than native patients (Isralowitz, Reznik, Spear, Brecht, & Rawson, 2007). In Europe, knowledge about addiction of migrants is often limited due to lack of data, although some researchers examined this subject with attention [for example, see Grusser, Wolfling, Morsen, Albrecht, & Heinz (2005); Hjern (2004); Reimer et al (2007); Specka, Buchholz, Kuhlmann, Haasen, & Scherbaum (2010)]. In France, literature is scarce and the quantity of research appears inappropriate given the scale of the challenge.…”