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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 visfatin at 11-13 weeks' gestation in preeclampsia.
Ferreira AF, Rezende JC, de Cassia C Oliveira R, Akolekar R, Nicolaides KH.
J Hum Hypertens 2013;27:261-4. -
First trimester sex hormone-binding globulin and subsequent development of preeclampsia or other adverse pregnancy outcomes.
Spencer K, Yu CK, Rembouskos G, Bindra R, Nicolaides KH.
Hypertens Pregnancy 2005;24:303-11.