Woods D L, Malan A F
Arch Dis Child. 1977 Sep;52(9):735-7. doi: 10.1136/adc.52.9.735.
Pairs of twins born concordant for weight score equally on both neurological and external criteria. The assessed gestational age of discordant twins is significantly different; while scoring equally on neurological criteria, the lighter twin scores less on external criteria. It is suggested that this pattern of underscoring may also be present in growth retarded singletons. If external criteria are used in estimating the gestational age of growth retarded infants, the results should be interpreted with caution.
体重一致的双胞胎在神经学和外部标准方面得分相同。不一致的双胞胎的评估胎龄有显著差异；虽然在神经学标准上得分相同，但较轻的双胞胎在外部标准上得分较低。有人认为，这种评分不足的模式也可能出现在生长受限的单胎婴儿中。如果使用外部标准来估计生长受限婴儿的胎龄，结果应谨慎解释。
