1 Department of Perinatology, Division of Obstetrics and Gynecology, University Medical Center Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Slovenia. Electronic address: miha.lucovnik@kclj.si.
2 Department of Perinatology, Division of Obstetrics and Gynecology, University Medical Center Ljubljana, Slovenia.
3 Faculty of Medicine, University of Ljubljana, Slovenia; Department of Cardiology, University Medical Center Ljubljana, Slovenia.
4 Department of Cardiology, University Medical Center Ljubljana, Slovenia.