1. Department of Gynecology and Obstetrics, University Hospital Essen, 45147 Essen, Germany
2. Department of Obstetrics and Gynecology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
3. Department of Pediatrics I, Neonatology & Experimental perinatal Neurosciences, University Hospital Essen, Centre for Translational Neuro- and Behavioural Sciences, C-TNBS, Faculty of Medicine, University Duisburg-Essen, 45147 Essen, Germany
4. Perinatal Neurobiology Research Group, School of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, 26111 Oldenburg, Germany