TY  - RPRT
TI  - Calculating correct Down's syndrome risks.
AU  - H Cuckle
AU  - I Sehmi
PY  - 1999
DO  - 10.1111/j.1471-0528.1999.tb08277.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10426246/
ID  - 10426246
ER  -