1. Laboratory of Industrial Toxicology Department of Clinical Medicine, Nephrology and Health Sciences, University of Parma Medical School Parma, Italy
2. Toxicology Division, University of Pavia and Maugeri Foundation Medical Centre Pavia, Italy
3. Laboratory of Histology Faculty of Medicine, University of Mons-Hainaut Mons, Belgium
4. Unit of Occupational Medicine and Industrial Toxicology, University of Louvain Bruxelles, Belgium