1. Dipartimento di Ingegneria Elettrica Elettronica e Informatica, University of Catania, Italy
2. IASI, Consiglio Nazionale Delle Ricerche (CNR), Roma, Italy
3. Azienda Ospedaliera per l’Emergenza Cannizzaro, Catania, Italy
4. Regional Referral Centre for Inborn Errors Metabolism, Pediatric Clinic, Department of Clinical and Experimental Medicine, University of Catania, Italy