1. Medical Management Center; Department of Learning, Informatics, Management and Ethics; Karolinska Institutet; Stockholm Sweden
2. Ivbar Institute; Stockholm Sweden
3. Institute of Clinical Sciences; Department of Obstetrics and Gynecology; Sahlgrenska University Hospital; Gothenburg Sweden
4. Department of Obstetrics and Gynecology; Akademiska Hospital; Uppsala Sweden
5. Department of Obstetrics and Gynecology; Karolinska University Hospital; Stockholm Sweden
6. Department of Women's and Children's Health; Karolinska Institutet; Stockholm Sweden