PGF and preeclampsia: The Roche Elecsys® immunoassay (Mannheim, Germany) sFlt-1/PlGF ratio is Conformité Européenne–In Vitro Diagnostics (CE-IVD) approved for use as an aid in preeclampsia diagnosis, and as an aid in short-term prediction of preeclampsia (rule-out and rule-in) in pregnant women with suspected preeclampsia in conjunction with other diagnostic and clinical information [17–20].