1. Department of Obstetrics and Gynaecology Imelda Hospital Bonheiden Belgium
2. Department of Anaesthesiology Imelda Hospital Bonheiden Belgium
3. Clinical and Experimental Endocrinology KU Leuven – University of Leuven Leuven Belgium
4. Leuven Biostatistics and Statistical Bioinformatics Centre (L‐BioStat) KU Leuven – University of Leuven Leuven Belgium
5. Interfaculty Institute for Family and Sexuality Studies KU Leuven – University of Leuven Leuven Belgium
6. Universitaire Vrouwenkliniek University of Ghent Ghent Belgium
7. Department of Obstetrics and Gynaecology Monash University Clayton Vic. Australia