1. Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
2. Department of Obstetrics & Gynecology, Örebro University Hospital, Örebro, Sweden
3. Danderyd’s Hospital, Stockholm, Sweden
4. Stockholm South Hospital and Octavia Clinic, Stockholm, Sweden
5. Karolinska Hospital, Stockholm, Sweden
6. Huddinge University Hospital, Stockholm, Sweden