CZ:Ref:DOI:10.1073/pnas.0605843103

Sherwood, C.C.; C.D. Stimpson & M.A. Raghanti et al. (2006), "Evolution of increased glia-neuron ratios in the human frontal cortex", Proc Natl Acad Sci USA 103 (37): 13606–13611, DOI:10.1073/pnas.0605843103 ^[e]

Provides comparative histological data on the glia-neuron ratios in prefrontal area 9L of the neocortex in 18 anthropoid primate species and on the allometric scaling of this ratio with brain size, concluding that the value in humans is well within the range allometrically expected for an anthropoid primate with our brain size.