2Competence Centre on Health Technologies, Tartu, Estonia
3Institute of Clinical Medicine, Department of Obstetrics and Gynecology, University of Tartu, Tartu, Estonia
4Institute of Biomedicine and Translational Medicine, Department of Biomedicine, University of Tartu, Tartu, Estonia
5Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland