1. Medical Oncology Unit, La Maddalena Clinic for Cancer, Palermo, Sicily, Italy
2. Department of Internal Medicine “Promise,” University of Palermo, Palermo, Sicily, Italy
3. GSTU Foundation for Urologic Tumors, Palermo, Sicily, Italy
4. Medical Oncology Unit, Policlinic “P. Giaccone,” University of Palermo, Palermo, Sicily, Italy
5. Medical Oncology Unit, Ospedale Buccheri La Ferla, Palermo, Sicily, Italy
6. Risk Management Unit, Policlinic “P. Giaccone,” University of Palermo, Palermo, Sicily, Italy