1. Department of Paediatrics; Aarhus University Hospital; Skejby; Denmark
2. Departments of Obstetrics and Gynaecology; Copenhagen University Hospital; Rigshospitalet; Denmark
3. Women's and Children's Hospital; Adelaide; Australia
4. Department of Obstetrics and Gynaecology; Aarhus University Hospital; Skejby; Denmark
5. Department of Obstetrics and Gynaecology; Copenhagen University Hospital; Hvidovre; Denmark
6. All India Institute of Medical Sciences in New Delhi; India
7. King Faisal Specialist Hospital & Research Centre; Makkah, Saudi Arabia
8. Hospital Clínic; Universitat de Barcelona; Spain