1. Department of Obstetrics and Gynecology University of Turku, and Turku University Hospital Turku Finland
2. Institute of Biomedicine Department of Physiology University of Oulu Oulu Finland
3. The Research Center of Applied and Preventive Cardiovascular Medicine (CAPC) University of Turku Turku Finland
4. Satakunta Central Hospital Pori Finland
5. Fetal Medicine Center Department of Obstetrics and Gynecology Helsinki University Hospital and University of Helsinki Helsinki Finland