1 Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium; Department of Development and Regeneration, Faculty of Medicine, Group Biomedical Sciences, KU Leuven, Leuven, Belgium.
2 Department of Obstetrics and Gynaecology, Franklin Woods Community Hospital, Johnson City, TN, USA; Division of Obstetrics and Gynaecology, State of Franklin Healthcare Associates, Johnson City, TN, USA.
3 Department of Development and Regeneration, Faculty of Medicine, Group Biomedical Sciences, KU Leuven, Leuven, Belgium; Department of Obstetrics and Gynaecology, Imelda Hospital, Bonheiden, Belgium. Electronic address: Jan.baekelandt@imelda.be.