1. Amsterdam UMC, Academic Medical Centre, Centre for Reproductive Medicine, Amsterdam, the Netherlands
2. Department of Reproductive Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
3. Department of Obstetrics and Gynaecology, Monash University, Clayton, VIC, Australia
4. Department of Biostatistics and Research Support, Julius Centre, University Medical Centre Utrecht, Utrecht, the Netherlands
5. Medical Statistics, Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, the Netherlands