1. Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy
2. Department of Educational Sciences, University of Catania, 95124 Catania, Italy
3. Department of Psychology, University of Rennes 2, 35700 Rennes, France
4. Department of Education Sciences, Psychology and Communication Sciences, University of Bari, 70121 Bari, Italy
5. Department of Psychology, Agri Ibrahim Cecen University, 04100 Agri, Turkey
6. Graduate Studies and Research, Lebanese American University, Beirut 1102-2801, Lebanon
7. Post-Graduate School of Occupational Health, Sacred Heart Catholic University, 75732 Rome, Italy
8. Health Service Department, Italian State Police, Ministry of the Interior, 20123 Milan, Italy