1 Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, the Netherlands.
2 Radboud Institute of Health Science, Nijmegen, the Netherlands.
3 Department of Obstetrics and Gynecology, Canisius-Wilhelmina Hospital, Nijmegen, the Netherlands.
4 Department of Radiation Oncology, University Medical Center, Nijmegen, the Netherlands.
5 Department of Obstetrics and Gynecology, GROW-School for Oncology and Reproduction, Maastricht University Medical Centre, Maastricht, the Netherlands.