1. Division of Pediatric Neurology; Centre Hospitalier de Luxembourg; Luxembourg Luxembourg
2. Department of Pediatrics; Centre Hospitalier de Luxembourg; Luxembourg Luxembourg
3. Department of Neuropathology; Institute Born-Bunge and University of Antwerp; Antwerpen Belgium
4. Department of Genetic; Academisch Centrum; Amsterdam Netherlands
5. Departments of Dermatology and Dermatopathology; Saint-Pierre, Brugmann and HUDERF Hospitals; Université Libre de Bruxelles; Brussels Belgium
6. Department of Dermatology; Centre Hospitalier Emile Mayrisch; Luxembourg Luxembourg
7. Department of Pediatric Neurology and Metabolic; UZBrussel Vrije Universiteit; Brussel Belgium