1. Department for Innovation in Biological, Agro-food and Forest systems (DIBAF) Viterbo, University of Tuscia, Italy;
2. Department of Epidemiology Lazio Regional Health Service, Agenzia di Sanita Pubblica Regione Lazio, Roma, Italy;
3. INAIL Research, Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Monte Porzio Catone (RM), Italy