[1] University of Bologna,Occupational Medicine Unit, Dipartimento di Medicina Interna, dell'Invecchiamento e Malattie Nefrologiche
[2] Tuscany Regional Centre for Occupational Injuries and Diseases (CeRIMP),Institute of Occupational Medicine
[3] University of Trieste,Dipartimento Processi Organizzativi
[4] National Institute of Occupational Safety and Prevention (ISPESL),Occupational Health Service
[5] ASL di Brescia,Occupational Health Service
[6] ASL di Modena,Occupational Health Service
[7] ASL di Ravenna,Institute of Occupational Medicine and Toxicology
[8] Occupational Health Service,Epidemiology Unit, Azienda Provinciale per i Servizi Sanitari
[9] ASUR Marche - Zona 2,Department of Public Health Sciences
[10] Occupational Health Service,Occupational Medicine Institute
[11] ASUR Marche - Zona 6,Occupational Health Service
[12] University of Perugia,undefined
[13] Provincia Autonoma di Trento,undefined
[14] Occupational Health Service,undefined
[15] ASL di Bologna,undefined
[16] Occupational Health Service,undefined
[17] ASL di Imola,undefined
[18] University of Modena and Reggio Emilia,undefined
[19] University of Brescia,undefined
[20] ASL di Sassari,undefined
[21] Occupational Health Service,undefined
[22] ASL di Firenze,undefined