1. Division of Epidemiology, Department of Public Health Sciences, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
2. Department of Occupational Hygiene, INAIL (Istituto Nazionale per l’Assicurazione contro gli Infortuni sul Lavoro), Monte Porzio Catone, Italy
3. Division of Biostatistics, Department of Public Health Sciences, School of Medicine, University of California, Davis, Davis, California, USA
4. Department of Physics, University of Rome Tor Vergata, Rome, Italy
5. Slovak Medical University, Bratislava, Slovakia
6. The Štefan Kukura Hospital and Policlinic, Michalovce, Slovakia
7. Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, USA
8. Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
9. Division of Environmental and Occupational Health, Department of Public Health Sciences, School of Medicine, University of California, Davis, Davis, California, USA