1. Department of Perinatology, Faculty of Medicine, University of Medical Sciences, 60-535 Poznan, Poland
2. Department of Obstetrics and Gynecology, Polish Mother’s Memorial Hospital Research Institute, 93-338 Lodz, Poland
3. Centers for Medical Genetics Diagnostyka GENESIS, 60-406 Poznan, Poland
4. Faculty of Medicine, University of Medical Sciences, 61-701 Poznan, Poland
5. Department of Neonatology, Faculty of Medicine, University of Medical Sciences, 60-535 Poznan, Poland