Affiliation: | a Maastricht University Medical Centre, Department of Obstetrics and Gynaecology, and GROW, School for Oncology and Developmental Biology, Maastricht, the Netherlands b University Nijmegen Medical Centre, Department of Obstetrics and Gynaecology, Nijmegen, the Netherlands c University Medical Centre Groningen, Department of Obstetrics and Gynaecology, University of Groningen, Groningen, the Netherlands |