《英文msh词典》Defect,Neural Tube
[入口词] Defect,Neural Tube
[主题词] Neural Tube Defects
[英文释义] Congenital malformations of the central nervous system and adjacent structures related to defective neural tube closure during the first trimester of pregnancy generally occurring between days 18-29 of gestation. Ectodermal and mesodermal malformations (mainly involving the skull and vertebrae) may occur as a result of defects of neural tube closure. (From Joynt,Clinical Neurology,1992,Ch55,pp31-41)