1. Department of Reproductive Medicine, Endometriosis Center Amsterdam UMC, Research Institute Amsterdam Reproduction and Development, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
2. Department of Development and Regeneration, KU Leuven, University of Leuven, Leuven, Belgium
3. Department of Obstetrics and Gynaecology, Isala Clinics, Zwolle, The Netherlands
4. Department of Epidemiology and Biostatistics, Amsterdam UMC, Vrije Universtiteit Amsterdam, Amsterdam, The Netherlands
5. Department of Obsetrics and Gynaecology, Radboud University Medical Center, Nijmegen, The Netherlands