1. Department of Medical Genetics Poznan University of Medical Sciences Poznan Poland
2. Centers for Medical Genetics GENESIS Poznan Poland
3. Department of Child Neurology Poznan University of Medical Sciences Poznan Poland
4. Central Teaching Hospital The Medical University of Lodz Poland
5. Department of Pediatric Neurology and Rehabilitation Medical University of Bialystok Poland
6. Medical Genetics Unit Mastermed Medical Center Poland
7. Department of Neurology Poznan University of Medical Sciences Poznan Poland