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An interpopulation comparison demonstrating statistically significant differences between the foramen magnum area between Peruvian and African, Bengal, East Asian, European, and Malayan crania. The mean areas of African, Bengali, East Asian, European, and Malayan crania ranged from 916.4 mm2 to 922.6 mm2; however, the average area of the Peruvian foramen magnum was 818.1 ± 16.15 mm2 (mean ± standard error of the mean)
