-
First trimester Angiotensinogen: Kallikrein ratio is raised in women who develop severe early-onset pre-eclampsia.
Breslin E, Slade S, Akolekar R, Nicolaides KH, Scrivens J, Quenby S.
Arch Dis Child Fetal Neonatal Ed 2014;99 Suppl 1:A5. pdf -
Maternal serum vitamin D levels at 11-13 weeks of gestation in preeclampsia.
Yu CK, Ertl R, Skyfta E, Akolekar R, Nicolaides KH.
Hum Hypertens 2013;27:115-8 . pdf