1. Department of Epidemiology, Lazio Region Health Service/ASL Roma 1, Rome, Italy
2. Institute of Biomedicine and Molecular Immunology (IBIM), National Research Council, Palermo, Italy
3. Environmental Research Group, King’s College, London, UK
4. Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
5. Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden