1. Department of Medical Oncology; Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) - IRCCS; Meldola Italy
2. Department of Medical Oncology; Azienda Ospedaliero-Universitaria “A. Cardarelli”; Napoli Italy
3. Department of Statistics; Regina Elena National Cancer Institute - IRCCS; Rome Italy
4. Medical Oncology Unit 1; Department of Clinical and Experimental Oncology; Istituto Oncologico Veneto IOV - IRCCS; Padova Italy
5. Department of Medical Oncology; Azienda Ospedaliero-Universitaria Pisana Spedali Riuniti S. Chiara; Pisa Italy
6. Department of Medical Oncology; Policlinico Umberto I; Roma Italy
7. Department of Medical Oncology; Azienda Ospedaliero-Universitaria di Santa Maria; Terni Italy
8. Department of Uro-Gynaecological Oncology; Istituto Nazionale Tumori IRCCS “Fondazione G. Pascale”; Napoli Italy
9. Department of Oncology and Hematology; Azienda Ospedaliero-Universitaria Policlinico di Modena; Modena Italy
10. Department of Medical Oncology; Istituto Nazionale Tumori - IRCCS; Aviano Italy
11. Medical Oncology Unit; Azienda Ospedaliero-Universitaria di Parma; Parma Italy
12. Department of Medical Oncology; CRO Pordenone-S.Vito Oncology; CRO - IRCCS; Aviano Italy
13. Department of Medical Oncology; ASST Spedali Civili di Brescia; Brescia Italy
14. Department of Medical Oncology; Azienda USL 8; Arezzo Italy
15. Department of Medical Oncology; Regina Elena National Cancer Institute - IRCCS; Rome Italy
16. Department of Medical Oncology; Fermo Area Vasta 4; Fermo Italy
17. Department of Medical Oncology; Azienda Ospedaliero-Universitaria San Martino IST - IRCCS; Genova Italy
18. University of Pavia and IRCCS San Matteo University Hospital Foundation; Pavia Italy
19. IRCCS San Matteo University Hospital Foundation; Pavia Italy
20. Department of Medical Oncology; Ospedale Santa Maria delle Croci; Ravenna Italy
21. Department of Medical Oncology; San Camillo Forlanini Hospital; Roma Italy
22. Department of Medical Oncology; Istituto Nazionale Tumori - IRCCS; Milano Italy