目的: 检测无汗性外胚层发育不全患者的EDA基因 的突变.Objetive : To detect the gene mutation of a patient with anhidrotic ectodermal dysplasia.此外,Nodal信号还在胚胎的左右不对称发育及神经外胚层的前后轴线分化中起重要的作用.Nodal signals also play pivotal roles in left - right asymm...

“外胚层”的英语可以翻译为：[医] animal-germ layer，dermal layer，neurodermal layer，ectoblast，ectoderm ...