TY  - RPRT
TI  - Amniotic fluid phospholipid profile.
AU  - D James
AU  - A Harkes
PY  - 1981
DO  - 10.1136/bmj.282.6268.994-e
UR  - https://pubmed.ncbi.nlm.nih.gov/6781704/
ID  - 6781704
ER  -