from Dietz et al. (1996), where the Cd analyses have been critically evaluated and only data for samples with N >= 8 were included.
Dietz, R., F. Riget and P. Johansen 1996. Lead, cadmium, mercury and selenium in Greenland marine animals
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Graphical production: Philippe Rekacewicz and Emmanuelle Bournay (GRID-Arendal)