Maternal alpha-fetoprotein screening: two years' experience in a low-risk district.Br Med J (Clin Res Ed) 1981; 283 doi: https://doi.org/10.1136/bmj.283.6301.1261-a (Published 07 November 1981) Cite this as: Br Med J (Clin Res Ed) 1981;283:1261
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