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Comparison of ophthalmic artery Doppler with PlGF and sFlt‐1/PlGF ratio at 35–37 weeks' gestation in prediction of imminent pre‐eclampsia

To compare the predictive performance for delivery with pre‐eclampsia (PE) at < 3 weeks and at any stage after assessment at 35 + 0 to 36 + 6 weeks' gestation of serum placental growth factor (PlGF) and soluble fms‐like tyrosine kinase‐1 (sFlt‐1)/PlGF ratio with that of a competing‐risks model utilizing maternal risk factors, mean arterial pressure (MAP) and ophthalmic artery peak systolic velocity (PSV) ratio.