1. Department of Obstetrics and Gynecology; School of Health and Medical Sciences; Örebro University; Örebro Sweden
2. UltraGyn Clinic; Stockholm Sweden
3. Department of Obstetrics and Gynecology; Karolinska University Hospital; Stockholm Sweden
4. Karolinska Institute; Stockholm Sweden
5. Department of Internal Medicine; School of Health and Medical Sciences; Örebro University; Örebro Sweden
6. Department of Pediatrics; School of Health and Medical Sciences; Örebro University; Örebro Sweden
7. Department of Children's and Women's Health; Uppsala University; Uppsala Sweden