1. Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland;
2. Heart and Lung Center, Cardiology, Helsinki University Hospital, Helsinki, Finland;
3. Department of Obstetrics and Gynecology, Oulu University Hospital, University of Oulu and Medical Research Center and PEDEGO Research Unit (Research Unit for Pediatrics, Dermatology, Clinical Genetics, Obstetrics and Gynecology), Oulu, Finland