1. IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri”; Milano Italy
2. Azienda Ospedaliera Carlo Poma; Mantova Italy
3. Azienda Ospedaliera di Bologna; Bologna Italy
4. Ospedale San Raffaele; Milan Italy
5. Pediatric Neurology Unit and Epilepsy Center; “Fatebenefratelli e Oftalmico” Hospital; ASST Fatebenefratelli Sacco; Milan Italy
6. Department of Pediatrics; University of L'Aquila; L'Aquila Italy
7. Bambino Gesù Children's Hospital; Rome Italy
8. Department of Internal Medicine and Therapeutics; C. Mondino National Neurological Institute; University of Pavia; Pavia Italy