1. Nutritional Epidemiology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Nazionale dei Tumori, Milan 20133, Italy
2. Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute, Florence 50139, Italy
3. Human Genetics Foundation, Biology and Biochemistry, University of Turin, Turin 10126, Italy
4. Department of Genetics, Biology and Biochemistry, University of Turin, Turin 10126, Italy
5. Imperial College, London SW7 2AZ, UK
6. University of Turin, Turin, 10126, Italy
7. Cancer Registry, Civile - M.P. Arezzo Hospital, Ragusa 97100, Italy
8. Histopathology Unit, Department of Oncology, Civile - M.P. Arezzo Hospital, Ragusa 97100, Italy
9. Department of Predictive Medicine and Prevention, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Nazionale dei Tumori, Milan 20133, Italy
10. Department of Medicine and Public Health, Second University of Naples, Naples 80138, Italy
11. Department of Clinical and Experimental Medicine, University of Naples Federico II, Naples 80131, Italy