1. Unit of Molecular Neurogenetics Fondazione IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico) Istituto Neurologico “Carlo Besta” Milan Italy
2. Department of Life Sciences University of Parma Parma Italy
3. Department of Child Neuropsychiatry C. Arrigo Hospital Alessandria Italy
4. MRC Mitochondrial Biology Unit Cambridge UK