Davies D P, Holding R E
Arch Dis Child. 1972 Dec;47(256):938-40. doi: 10.1136/adc.47.256.938.
A new instrument for measuring crown-heel length in infancy is described. Reproducibility data show it to be capable of detecting the small increments in linear growth that might be expected at this age, with an accuracy and reliability certainly adequate for any conceivable purpose at the present time.
本文介绍了一种用于测量婴儿顶跟长度的新仪器。重复性数据表明，该仪器能够检测出这个年龄段可能出现的线性生长的微小增量，其准确性和可靠性对于目前任何可想象的用途来说肯定是足够的。
