1. Sobell Department of Motor Neuroscience and Movement Disorders; Institute of Neurology; University College London; United Kingdom
2. Department of Neurology; University of Ljubljana; Ljubljana Slovenia
3. Hospital de Egas Moniz; Centro Hospitalar de Lisboa Ocidental; Lisboa Portugal
4. Developmental Neurology Department; Medical University of Gdansk; Poland
5. Department of Molecular Neuroscience and Reta Lila Weston Institute; University College London Institute of Neurology; London, Queen Square London United Kingdom
6. Department of Neurology; Papageorgiou General Hospital; Thessaloniki Greece
7. Movement Disorders Unit; Neurology Department; Hospital Universitario La Fe; Valencia Spain
8. Department of Neurology; Amedeo Avogadro University; Novara Italy
9. Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
10. Istituto di Ricovero e Cura a Carattere Scientifico; Casa Sollievo della Sofferenza, Mendel Laboratory; San Giovanni Rotondo Italy
11. Department of Medical, Oral, and Biotechnological Sciences; Gabriele D'Annunzio University; Chieti Italy
12. Department of Neurological-Psychiatric Nursing; Medical University of Gdansk and Department of Neurology and Stroke; St. Adalbert Hospital; Gdansk Poland
13. Department of Drug and Health Products Sciences; University of Messina; Messina Italy
14. Department of Pediatrics; King Khalid University Hospital and College of Medicine; King Saud University; Riyadh Saudi Arabia
15. Department of Anatomy and Cell Biology; College of Medicine; Alfaisal University; Riyadh Saudi Arabia