1. Paediatric Haematology/Oncology Department, IRCCS, Ospedale Pediatrico Bambino Gesù, Rome, Italy
2. Department of Biology, University of Pisa, Pisa, Italy
3. Division of molecular genetic epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
4. Department of Medicine, Education and Research Centre, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
5. IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy
6. Institute of Clinical Physiology (IFC), CNR, Pisa, Italy
7. School of Environment and Life Sciences, University of Salford, Manchester, United Kingdom
8. Department of Surgical, Medical, Molecular Pathology and Critical Care, Division of Pathological Anatomy, University of Pisa, Pisa, Italy
9. Preventive and Occupational Medicine, University Hospital of Pisa, Pisa, Italy
10. Department of Translational Research and of new Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy