1. Department of Pediatric Neurology; Medical University of Silesia; Katowice Poland
2. Department of Medical Genetics; Medical University of Warsaw; Warsaw Poland
3. Postgraduate School of Molecular Medicine; Medical University of Warsaw; Warsaw Poland
4. Department of Genetics; Wroclaw Medical University; Wroclaw Poland
5. Department of Diagnostic Imaging; Medical University of Silesia; Katowice Poland