1. Department of Pediatrics, Oncology, Hematology and Diabetology; Medical University of Lodz; Lodz Poland
2. Department of Biology and Genetics; Medical University of Gdansk; Gdansk Poland
3. Department of Clinical Genetics; Medical University of Lodz; Lodz Poland
4. Clinical Immunology and Transplantology Unit at the Department of Immunology; Medical University of Gdansk; Gdansk Poland