Low levels of maternal serum PAPP-A in the first trimester and the risk of pre-eclampsia.

<h4>Background</h4>Low levels of pregnancy associated plasma protein-A (PAPP-A) have been previously shown to be associated with pregnancies that subsequently develop pre-eclampsia. The objective of this study was to establish the relative risk for pre-eclampsia at various PAPP-A levels as an aid to... View More