TY  - RPRT
TI  - Relation between maternal serum and amniotic fluid AFP.
AU  - N J Wald
AU  - H S Cuckle
PY  - 1980
DO  - 10.1016/s0140-6736(80)90742-4
UR  - https://pubmed.ncbi.nlm.nih.gov/6153444/
ID  - 6153444
ER  -