TY  - RPRT
TI  - Screening for neural tube defects.
AU  - D A Ellwood
PY  - 1993
DO  - 10.5694/j.1326-5377.1993.tb137956.x
UR  - https://pubmed.ncbi.nlm.nih.gov/7692224/
ID  - 7692224
ER  -