1. Ospedale Policlinico San Martino IRCCS, Genoa, Italy;
2. Medical Oncology Unit 1, IRCCS Ospedale Policlinico San Martino, Genoa, Italy;
3. Mayo Clinic, Rochester, MN;
4. West Cancer Center, Germantown, TN;
5. Sorbonne University and Saint-Antoine Hospital, Paris, France;
6. Karmanos Cancer Institute, Wayne State University, Detroit, MI;
7. Unit of Clinical Epidemiology, Ospedale Policlinico San Martino, Genoa, Italy;
8. Epidemiology Unit, IRCCS Policlinico San Martino, Genoa, Italy;