Human umbilical endothelial cells (HUVECs) have a sex: characterisation of the phenotype of male and female cells.

A highly significant positive correlation was found between the weight of male newborns and their mother’s weight ( r = 0.389; P = 0.00001), while no significant correlation ( r = 0.180; P = 0.0871) was found between the weight of female newborns and the weight of their mothers (Figure 1 ).

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The female babies weighed less than the males, but the difference did not reach statistical significance.

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