1. Medical Oncology Unit, AOU Careggi Hospital, I‑50134 Florence, Italy
2. Medical Oncology Unit, Alta Val d'Elsa Hospital, I‑53036 Poggibonsi, Italy
3. Medical Oncology Unit, AOU Pisana Hospital, I‑56126 Pisa, Italy
4. AUSL‑IRCSS, I‑42122 Reggio Emilia, Italy
5. Department of Medical Oncology, IRST IRCCS, I‑47014 Meldola, Italy
6. Medical Oncology Unit, AOU Parma Hospital, I‑43126 Parma, Italy
7. Medical Oncology Unit, San Luca Hospital, I‑55100 Lucca, Italy
8. Anatomical Pathology Unit, AOU Careggi Hospital, I‑50134 Florence, Italy
9. Regional Parini Hospital, I‑11100 Aosta, Italy
10. Pathology Unit, ASL‑IRCCS, I‑42122 Reggio Emilia, Italy
11. Operative Unit of Pathologic Anatomy, Santa Maria delle Croci Hospital, I‑48121 Ravenna, Italy