Mitchell D
Arch Dis Child. 1979 Nov;54(11):896-7. doi: 10.1136/adc.54.11.896.
The gestational age at delivery in a group of 20 neonates was estimated prenatally from measurements of the biparietal diameter made by ultrasound during pregnancy, and postnatally from the newborn infant's neurological and external physical criteria or maturity using the method of Dubowitz et al. (1970). These two assessments were compared with the gestational age at delivery calculated from the date of the last menstrual period (LMP) in mothers certain of their dates. Gestational age derived from the ultrasound data correlated well with that derived from the mother's LMP, and much better than did gestational age derived from the postnatal scoring system.
一组20名新生儿的分娩孕周，产前通过孕期超声测量双顶径来估计，产后则采用杜博维茨等人（1970年）的方法，根据新生儿的神经和外部身体标准或成熟度来评估。将这两种评估方法与根据确定末次月经日期（LMP）的母亲所计算出的分娩孕周进行比较。超声数据得出的孕周与母亲LMP得出的孕周相关性良好，且比产后评分系统得出的孕周相关性要好得多。
