1. Tommys' National Centre for Miscarriage Research Imperial College London UK
2. Department of Public Health and Primary Care KU Leuven Leuven Belgium
3. Nuffield Department of Primary Care Health Sciences University of Oxford Oxford UK
4. Department of Development and Regeneration KU Leuven Leuven Belgium
5. Department of Biomedical Data Sciences Leiden University Medical Centre Leiden the Netherlands
6. Department of Obstetrics and Gynaecology University Hospitals Leuven Leuven Belgium