1. Interdisciplinary Department of Medicine (DIM), Section “B. Ramazzini”, University Hospital “Policlinico”, Unit of Occupational Medicine, School of Medicine, University of Bari, Bari, Italy;
2. Department of Public Health, Clinic and Molecular Medicine, Section of Occupational Medicine, Regional University Hospital, School of Medicine, University of Cagliari, Monserrato (Cagliari), Italy;
3. Department of Haematology and Organ Transplantation (DETO), University Hospital “Policlinico”, Unit of Haematology, School of Medicine, University of Bari, Bari, Italy;
4. ASL of Taranto, Moscati Hospital, Unit of Haematology, Taranto, Italy