Response to “Z‐score reference ranges for normal fetal heart sizes throughout pregnancy derived from fetal echocardiography”

We thank Dr. Devore for pointing out the errors in Table 2 and there were also some mistakes in Table 5. The correct information is as follows: In Table 2, the equation for SD of HC base on BPD “Y = 0.272 + 0.989BPD” should be “Y = 0.272 + 0.0989BPD”. In Table 5, line 2, all “< 2” should be “< 2”. We are so sorry and we apologize for our mistakes. Xinyan Li*, Qichang Zhou, Huan Huang, Xiaoxian Tian and Qinghai Peng