TY  - RPRT
TI  - Amniotic fluid studies to determine maturity.
AU  - B F Andrews
PY  - 1970
DO  - 10.1016/s0031-3955(16)32375-6
UR  - https://pubmed.ncbi.nlm.nih.gov/5419109/
ID  - 5419109
ER  -