1. Department of Pediatrics Division Pediatric Propedeutics and Rare Disorders Wroclaw Medical University Wrocław Poland
2. Department of Medical Genetics Medical University of Warsaw Warsaw Poland
3. Department of Experimental and Clinical Neuropathology Mossakowski Medical Research Centre Polish Academy of Sciences Warsaw Poland
4. Department of Clinical Immunology Wroclaw Medical University Wroclaw Poland
5. Third Department and Clinic of Pediatrics, Immunology and Rheumatology of Developmental Age Wroclaw Medical University Wroclaw Poland
6. Department of Paediatrics and Infectious Diseases Wroclaw Medical University Wroclaw Poland
7. Department of Paediatric Neurology J. Gromkowski Regional Specialist Hospital Wrocław Poland
8. Cancer Genetics Unit Cancer Prevention Department The Maria Sklodowska‐Curie National Research Institute of Oncology Warsaw Poland