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. 2009 Apr 24;4(4):e5330. doi: 10.1371/journal.pone.0005330

Figure 2. Mean blood lead concentrations observed during swine feeding experiment.

Figure 2

Mean (±SE) blood lead concentrations (µg/dL) in four pigs fed venison containing radiographically dense fragments (Fragments) compared with four control pigs fed venison without visible fragments (No Fragments) on days 0 and 1. Asterisks indicate days when means differed significantly between test and control groups.