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汉语拼音：pēi yè

胚层。

• Most grass embryos have a flap - like structure known as the epiblast.

  大多数禾本科胚有一片瓣 状 结构通常称为外胚叶.

• The neurofibromas are multiple benign neoplasms of the peripheral nervous system, arising from mesodermally - derived Schwann cells.

  神经纤维瘤是外围神经系统的多发良性肿瘤,由中胚叶的雪氏细胞发生.

• Objective: To characterize the clinical presentation of congenital mesoblastic nephroma ( CMN ) in children.

  目的: 探讨小儿先天性中胚叶肾瘤 ( CMN ) 的临床特点、诊断及治疗.

• Objective : To detect ED 1 gene mutation in three hypohidrotic ectodermal dysplasia ( HED ) nuclear families.

  目的: 研究少汗性外胚叶发育不全引起先天缺牙的ED1基因突变.

• Objective To analyze genetic types and clinical features with anhidrotic ectodermal dysplasia ( EDA ).

  目的分析无汗性外胚叶发育不全的遗传类型和临床特点.