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Normal ranges for a wide variety of biometrical parameters were established from cross-sectional data on 1040 normal singleton pregnancies resulting in livebirth at term of normal, and appropriately grown infants. Patients were selected so that the birth weight distribution was similar to that reported by Yudkin and colleagues' and the ranges can, therefore, be used for any population that has a similar birth weight distribution.
Snijders et al. (Sat,) studied this question.