1. UOC Genetica Medica; IRCCS-Casa Sollievo della Sofferenza; San Giovanni Rotondo (Foggia) Italy
2. Division/Laboratory of Medical Genetics; Department of Molecular Medicine; San Camillo-Forlanini Hospital; Sapienza University; Rome Italy
3. Institute of Human Genetics; Jena University Hospital; Friedrich-Schiller-University Jena; Jena Germany
4. Department of Clinical Neurosciences; IRCCS Foundation C. Besta Neurological Institute; Neurological Rare Diseases of Adulthood Unit; Milan Italy
5. Department of Molecular Biotechnology and Health Sciences; Molecular Biotechnology Center; University of Torino; Torino Italy
6. Medical Faculty; Institute of Human Genetics; RWTH Aachen University; Aachen Germany