1. Department of Educational Sciences, Section of Psychology, University of Catania, 95123 Catania, Italy
2. Center of Excellence for the Acceleration of Harm Reduction (CoEHAR), University of Catania, 95121 Catania, Italy
3. Department of General Surgery and Medical-Surgical Specialities, University of Catania, Catania, Italy.Infectious Disease Department at University Hospital AOU Policlinico “G. Rodolico- San Marco” of Catania, Italy
4. Department of Clinical and Experimental Medicine, Psychiatry Unit, University of Catania, 95123 Catania, Italy