1. Department of Obstetrics and Gynecology; Institute of Clinical Sciences; Sahlgrenska Academy; Gothenburg University; Reproductive Medicine; Sahlgrenska University Hospital; Gothenburg Sweden
2. Fertility Center Scandinavia; Gothenburg Sweden
3. Department of Health Sciences; Nursing Sciences; Faculty of Health, Science and Technology; Karlstad University; Karlstad Sweden
4. Department of Health Studies; Faculty of Public Health; Hedmark University of Applied Sciences; Elverum Norway