1. Department of Nursing; Mid Sweden University; Sundsvall Sweden
2. Department of Women's and Children's Health; Uppsala University; Uppsala Sweden
3. Faculty of Health Sciences; Research Group: Maternal, Reproductive and Children's Health; Oslo Norway
4. Akershus University College of Applied Sciences; Oslo Norway
5. The Research Unit; Women's and Children's Health; The Juliane Marie Centre for Women; Children and Reproduction; Copenhagen University Hospital Rigshospitalet; Copenhagen Denmark
6. Unit for Clinical Genetics; Oslo University Hospital; Oslo Norway
7. Region Sealand Homebirth Association; Sorø Denmark
8. Faculty of Nursing; Department of Midwifery; University of Iceland; Reykjavík Iceland
9. Department of Women's and Children's Health; Division of Reproductive Health; Karolinska Institutet; Stockholm Sweden
10. Department of Health and Care Science; Sahlgrenska Akademin; University of Gothenburg; Gothenburg Sweden