1. Department of Biomedical Engineering & Physics, Academic Medical Center; University of Amsterdam; Amsterdam The Netherlands
2. Department of Clinical Chemistry and Laboratory Medicine; Leiden University Medical Center; Leiden The Netherlands
3. Department of Obstetrics and Gynecology; Gelre Hospitals; location Apeldoorn The Netherlands
4. The Fetal Center, McGovern Medical School at UTHealth; University of Texas; Houston TX USA
5. Department of Pathology, Wilhelmina Children's Hospital; University Medical Center; Utrecht The Netherlands