TY  - RPRT
TI  - Risk estimation in Down's syndrome screening.
AU  - N J Wald
AU  - A K Hackshaw
PY  - 1996
DO  - 10.1002/(sici)1097-0223(199611)16:11<1055::aid-pd990>3.0.co;2-b
UR  - https://pubmed.ncbi.nlm.nih.gov/8953642/
ID  - 8953642
ER  -