Figure 2.

Frequencies of individuals with median arteries of forearms by date of birth in a sample of 284 South African dissection cadavers. Trend of increase in the incidence is significant (χ2(1) = 11.90, P <0.001 z = 3.94, P <0.0011 (z test for linear trends in proportions)). For further data see [71].

Rühli and Henneberg BMC Medicine 2013 11:115   doi:10.1186/1741-7015-11-115
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