TY  - RPRT
TI  - Multiple marker second trimester serum screening for pre-eclampsia.
AU  - N J Wald
AU  - J K Morris
PY  - 2001
DO  - 10.1136/jms.8.2.65
UR  - https://pubmed.ncbi.nlm.nih.gov/11480445/
ID  - 11480445
ER  -