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The first international standards for fetal growth and newborn size have been developed by a global team led by scientists from Oxford University.

The international standards depict the desirable pattern of healthy growth for all babies everywhere, regardless of their ethnicity or country of birth. They provide 3rd, 10th, 50th, 90th and 97th centile curves for the growth of a baby during pregnancy (as measured by ultrasound) and for a baby's size at birth according to gestational age (weight, length and head circumference).

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