1. Department of Obstetrics and Gynecology, Turku University Central Hospital and University of Turku, Turku, Finland
2. Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
3. Medical and Clinical Genetics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
4. Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
5. Department of Obstetrics and Gynecology, Faculty of Medicine and Health Technology, Center for Child, Adolescent, and Maternal Health Research, Tampere University Hospital and University of Tampere, Tampere, Finland
6. Department of Food and Nutrition, University of Helsinki, Helsinki, Finland