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An interpopulation comparison demonstrating statistically significant differences between the aspect ratios of Peruvian foramen magnum with those of crania from individuals of African and Bengali crania. The difference between means of African and Peruvian foramen magnum aspect ratios was 0.10 ± 0.03 (mean ± standard error of the mean). The difference between means of Bengali and Peruvian foramen magnum aspect ratios was 0.08 ± 0.02
