Expression of theSonic Hedgehog gene in
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Kirillova, Irena; Novikova, Irena; Aug๏ฟฝ, Joelle; Audollent, Sophie; Esnault, Dom
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Article
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2000
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John Wiley and Sons
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English
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Background: To estimate the rate of malformations observed during early human development, a series of 38,913 first-trimester abortions were studied. Neural tube defects (NTD) were found in 57 cases. Methods: A histological study of serial sections performed in 25 embryos revealed a spectrum of axi