1. Formerly professor of Occupational Medicine; University of Perugia; Perugia Italy
2. Occupational Medicine; Terni Hospital; University of Perugia; Perugia Italy
3. Section of Allergology; Department of Internal Medicine; Erasmus Medical Center; Rotterdam the Netherlands
4. Centre for Occupational and Environmental Health Research; School of Public Health and Family Medicine; University of Cape Town; Cape Town South Africa
5. Department of Public Health; Experimental and Forensic Medicine of the University of Pavia; Pavia Italy
6. Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ) and CIBER of Respiratory Diseases CIBERES; Madrid Spain
7. Institute of Prevention and Occupational Medicine of the German Social Accident Insurance; Institute of the Ruhr University Bochum; Bochum Germany
8. Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
9. Nofer Institute of Occupational Medicine; Lodz Poland
10. Department of Respiratory Medicine; Leeds Teaching Hospitals NHS Trust; Leeds UK
11. Toronto Western Hospital; Toronto ON Canada