B. Mosimann, C. Pfiffner, S. Amylidi-Mohr, L. Risch, D. Surbek, and L. Raio, “First trimester combined screening for preeclampsia and small for gestational age – a single centre experience and validation of the FMF screening algorithm”, Swiss Med Wkly, vol. 147, no. 3334, p. w14498, Aug. 2017.