Figure 3.

Boxplot of hemoglobin levels estimated in the Amhara, Aari and Hamer population samples. Each population sample along with the altitude in meters at which the sample was collected is shown on the x-axis, and the hemoglobin (Hb) levels are plotted on the y-axis.

Scheinfeldt et al. Genome Biology 2012 13:R1   doi:10.1186/gb-2012-13-1-r1
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