1. Department of Development and Regeneration, Cluster Woman and Child Group Biomedical Sciences KU Leuven University of Leuven Leuven Belgium
2. Department of Obstetrics and Gynaecology University Hospitals Leuven Leuven Belgium
3. Institute for Women's Health University College London London UK
4. Department of Obstetrics and Gynaecology Copenhagen University Hospital Hvidovre Denmark
5. Department of Pediatrics Lund University Skåne University Hospital Lund Sweden
6. Cochrane Sweden Skåne University Hospital Lund Sweden