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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Wald N. J., Cuckle H., Brock J. H., Peto R., Polani P. E., Woodford F. P. 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 Jun 25;1(8026):1323–1332. [PubMed] [Google Scholar]