1. Section of Psychiatry, Department of Neurosciences, Psychiatric and Anaesthesiological Sciences; University of Messina; Messina; Italy
2. Section of Pharmacology, Department of Clinical and Experimental Medicine and Pharmacology; University of Messina; Messina; Italy
3. Department of Psychiatry and Psychotherapy; University of Göttingen; Göttingen; Germany
4. Clinical and Experimental Sciences Academic Unit, Faculty of Medicine; University of Southampton; Southampton; UK