1 LUFC - Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium Department of Development and Regeneration, KU Leuven, Leuven, Belgium [email protected].
2 I-BioStat, Katholieke Universiteit Leuven and Universiteit Hasselt, Leuven, Belgium.
3 Department of Gynaecology-Andrology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium.
4 Centre for Reproductive Medicine, Free University of Brussels, Brussels, Belgium.
6 Centre de PMA, Clinique Saint-Vincent, Liège, Belgium.
7 Department of Reproductive Medicine, University Hospital Gent, Gent, Belgium.
8 Centre de Procréation Médicalement Assistée, Université de Liège, Liège, Belgium.
9 Leuven Institute for Fertility and Embryology, Leuven, Belgium.
10 Centre de Procréation Médicalement Assistée, Centre Hospitalier Inter Régional Edith Cavell, Braine l'Alleud, Belgium.
11 Department of Obstetrics and Gynaecology, Université Libre de Bruxelles, Brussels, Belgium.
12 LUFC - Department of Obstetrics and Gynaecology, University Hospitals Leuven, Leuven, Belgium Department of Development and Regeneration, KU Leuven, Leuven, Belgium.