1. VIVE—The Danish Centre for Social Science Research, Herluf Trolles Gade 11, 1052 Copenhagen, Denmark
2. Research Unit for Gynecology and Obstetrics, Department of Clinical Research, University of Southern Denmark, 5230 Odense, Denmark
3. Department of Gynaecology and Obstetrics, Odense University Hospital, 5230 Odense, Denmark
4. Faculty of Health, University of Canberra and ACT Health, Bruce, ACT 2617, Australia