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\bibitem{Eeckhaoudt_etal1992} {\textquotedblleft}\textit{X-ray micro-analysis of aluminium in pumpkinseed gills}{\textquotedblright}. Eeckhaoudt S, Jacob W, Witters H, Van Grieken R, European journal of morphology \textbf{30}, 296 (1992)

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