PGF and infection: Predicting ultrasonographical symptomatic fetal infection by serum protein concentrations results in an 0.82 AUC 95%CI (0.69, 0.94); p < 0.001 for sFlt1 and 0.462 AUC 95%CI (0.24, 0.69); p = 0.66 for PlGF (Figures S1–S6).