PGF and preeclampsia: A 4‐week observation window along with the cutoff value of 38 was applied in the article by Zeisler et al.,7 which showed that the sFlt‐1/PlGF ratio could accurately exclude preeclampsia occurrence in suspicious patients, with an AUC of 0.90 in the ROC analysis compared to an AUC of 0.67 in our study with follow‐up until delivery; however, for the remaining markers included in present study, the observation window was yet to be well‐defined; delivery remained the mainstream endpoint in most of the preeclampsia prediction studies.5, 20