1. Obstetrics and Gynecology; University of Helsinki and Helsinki University Hospital; Helsinki Finland
2. Hyvinkää Hospital; University of Helsinki and Helsinki University Hospital; Helsinki Finland
3. Information Services Department; THL National Institute for Health and Welfare; Helsinki Finland
4. Department of Neurobiology, Care Sciences and Society; Division of Family Medicine; Karolinska Institute; Stockholm Sweden
5. Public Health; University of Helsinki and Helsinki University Hospital; Helsinki Finland
6. Pediatrics; University of Helsinki and Helsinki University Hospital; Helsinki Finland