DOI:
10.1055/s-00000142
Frauenheilkunde up2date
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References
Wald NJ, Cuckle H, Brock JH. et al.
Maternal serum-alpha-fetoprotein measurement in antenatal screening for anencephaly and spina bifida in early pregnancy. Report of U.K. collaborative study on alpha-fetoprotein in relation to neural-tube defects.
Lancet 1977;
1(8026): 1323-1332
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