TY  - RPRT
TI  - Alpha-fetoprotein screening programs: what every obstetric sonologist should know.
AU  - R A Filly
AU  - P W Callen
AU  - R B Goldstein
PY  - 1993
DO  - 10.1148/radiology.188.1.7685528
UR  - https://pubmed.ncbi.nlm.nih.gov/7685528/
ID  - 7685528
ER  -