1. Unit of Medical Oncology 2, Azienda Ospedaliera-Universitaria Pisana, University of Pisa, Istituto Toscano Tumori, Pisa, Italy
2. Clinical Pharmacology and Pharmacogenetics Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
3. Oncologia Medica 1, Istituto Oncologico Veneto, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Padova, Italy
4. Department of Medical Oncology, Policlinico Umberto I “Sapienza” University of Rome, Roma, Italy
5. Medical Oncology Unit, Ospedale San Raffaele-IRCCS, Milano, Italy
6. ASST di Cremona, Ospedale di Cremona, Cremona, Italy
7. Fondazione Poliambulanza Hospital, Brescia, Italy
8. SSD ColoRectal Unit-Dipartimento di Oncologia, AOU Città della Salute e della Scienza di Torino, Torino, Italy
9. Medical Oncology Unit, CRO-National Cancer Institute, Aviano, Italy
10. Medical Oncology Unit, Presidio Ospedaliero Felice Lotti, Pontedera, Italy
11. Department of Oncology, S. Croce and Carle Teaching Hospital, Cuneo, Italy
12. Medical Oncology Department, Nuovo Ospedale-Santo Stefano, Istituto Toscano Tumori, Prato, Italy
13. Clinical Trial Coordinating Center, AOU Careggi, Istituto Toscano Tumori, Firenze, Italy