%0 Journal Article %T THE REDUCTION OF ANENCEPHALIC AND SPINA BIFIDA BIRTHS BY MATERNAL SERUM ALPHAFETOPROTEIN SCREENING %A FERGUSON-SMITH, M A %J British Medical Bulletin %V 39 %N 4 %P 365-372 %@ 0007-1420 %D 1983-01-01 %I Oxford University Press %~ DeepDyve