1. Department of Pediatrics, Oncology and Hematology Medical University of Lodz Lodz Poland
2. Department of Pediatrics, Diabetology, Endocrinology and Nephrology Medical University of Lodz Lodz Poland
3. Department of Clinical Genetics Medical University of Lodz Lodz Poland
4. Department of Pathology, Chair of Oncology Medical University of Lodz Lodz Poland
5. Department of Medical Genetics Polish Mother's Memorial Hospital‐Research Institute Lodz Poland
6. Department of Pediatrics, Division of Propaedeutic Pediatrics and Rare Disorders Wroclaw Medical University Wroclaw Poland
7. Department of Genetics Wroclaw Medical University Wroclaw Poland
8. Laboratory of Genetic Diagnostics Medical University of Lublin Lublin Poland
9. Centre for Rare Diseases Medical University of Gdansk Gdansk Poland
10. Clinial Genetics Unit, Department of Biology and Medical Genetics Medical University of Gdansk Gdansk Poland