1. Department of Health Promotion, Poznan University of Medical Sciences, Poznań, Poland
2. Institute of Human Genetics Polish Academy of Sciences, Poznań, Poland
3. Department of Pediatric Surgery, Poznan University of Medical Sciences, Poznań, Poland
4. Department of Oncology, Hematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, Poznań, Poland