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\bibitem{Broers+Cerutti2005} Broers, B., \& Cerutti, B. (2005). \textit{Follow-up of methadone treatments in Switzerland : a cohort study based on the cantonal administrative records of Geneva and Ticino : part II : appendices}. Bellinzona; Geneva: Ufficio del medico cantonale; H{\^o}pitaux universitaires de Gen{\`e}ve (HUG).

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