1. International PhD Program in Neuropharmacology, University of Catania Medical School, Catania, Italy
2. Department of Internal Medicine and Systemic Diseases, University of Catania, Catania, Italy
3. Department of Biological Chemistry, Medical Chemistry and Molecular Biology, University of Catania, Catania, Italy
4. Department of Medical Oncology, National Cancer Institute, Aviano, PN, Italy