1. Department of Ophthalmology, Poznan University of Medical Sciences, ul. Augustyna Szamarzewskiego 84, 61-848 Poznan, Poland
2. Department of Neonatology, Poznan University of Medical Sciences, ul. Polna 33, 60-535 Poznan, Poland
3. Department of Perinatology and Women’s Diseases, Poznan University of Medical Sciences, ul. Polna 33, 60-535 Poznan, Poland
4. Institute of Human Genetics, Polish Academy of Sciences, ul. Strzeszynska 32, 60-479 Poznan, Poland