1. Department of Medical Oncology, University of Turin, Turin, Italy
2. San Luigi Gonzaga University Hospital, Orbassano, Italy
3. Medical Oncology Unit 2, Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
4. Medical Oncology Division, Cliniche Humanitas Gavazzeni, Bergamo, Italy
5. Previously at Unit of Sarcomas and Thymomas, European Institute of Oncology, Milan, Italy
6. Oncology Unit. Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
7. Medical Oncology, Humanitas Cancer Center, Rozzano (MI), Italy
8. Division of Medical Oncology 2, IRCCS Regina Elena National Cancer Institute, Rome, Italy
9. Oncology Department, ASL Città di Torino, Turin, Italy
10. Sarcoma and gastrointestinal tumors Unit, Centro di Riferimento Oncologico, Aviano, Italy
11. Medical Oncology 1, Ospedale Policlinico San Martino, University of Genova, Genova, Italy
12. Clinical Oncology Unit, Oncology Department and Robotic Surgery, AOU Careggi, Florence, Italy
13. Medical Oncology, Università Campus Bio-Medico, Rome, Italy
14. Medical Oncology 1, Istituto Oncologico Veneto IOV–IRCCS, Padua, Italy
15. Medical Oncology, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
16. Department of Oncology, Azienda Ospedaliero-Universitaria delle Marche, 60126 Ancona, Italy
17. Medical Oncology, Nuovo Ospedale Santo Stefano, Prato, Italy
18. Sarcoma Unit, Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy
19. Surgical Department, Melanoma and Sarcoma, European Institute of Oncology, Milan, Italy
20. Sarcoma Service, Surgical Department, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
21. Department of Medicine, University of Padua School of Medicine, Padua, Italy
22. Medical Oncology 2, AOU Città della Salute e della Scienza di Torino, Turin, Italy
23. for the Italian Sarcoma Group