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\bibitem{Commission+MethadoneWorkingGroupoftheSub-commissiononDrugIssues1996} Commission, S. N. S., \& Methadone Working Group of the Sub-commission on Drug Issues. (1996). \textit{Swiss methadone report : narcotic substitution in the treatment of heroin addicts in Switzerland}  (A. Uchtenhagen, Ed.). Berne; Toronto: Swiss Federal Offfice of Public Health (FOPH); Addiction Research Foundation (ARF).

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