TY  - RPRT
TI  - Serum screening for Down's syndrome. Private screening is problematic.
AU  - T M Reynolds
PY  - 1993
DO  - 10.1136/bmj.307.6902.501-a
UR  - https://pubmed.ncbi.nlm.nih.gov/8400946/
ID  - 8400946
ER  -