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\bibitem{Buchert_etal2003} Buchert, R., Thomasius, R., Nebeling, B., Petersen, K., Obrocki, J., Jenicke, L., et al. (2003). Long-Term Effects of {\textquotedblleft}Ecstasy{\textquotedblright} : Use on Serotonin Transporters of the Brain Investigated by PET. \textit{Journal of nuclear medicine}, \textit{44}(3), 375--384.

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