TY  - RPRT
TI  - Repeat maternal serum alpha-fetoprotein testing in antenatal screening programmes for Down's syndrome.
AU  - H S Cuckle
AU  - N J Wald
AU  - K Nanchahal
AU  - J Densem
PY  - 1989
DO  - 10.1111/j.1471-0528.1989.tb01576.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2466479/
ID  - 2466479
ER  -