略語大辞典 [Med] 28 NTD neural tube defect 神経管欠損. 胎児の奇形. 神経管は神経板から出て胎児の中枢神経系をつくる上皮細胞系の管.neural tube defect; a congenital abnormality; e.g. pregnancy with a fetuswith an NTD; [Med]. 丸善「略語大辞典」JLogosID : 11863408