1. Division of Palliative Care, Department of Oncology and Hematology, University Hospital of Modena, Modena, Italy.
2. Division of Oncology, Department of Oncology and Hematology, University Hospital of Modena, Modena, Italy.
3. Medical Oncology Unit, University Hospital and University of Cagliari, Cagliari, Italy.
4. Azienda Ospedaliero Universitaria Sant'Andrea, Medical Oncology Unit, Rome, Italy.
5. Tuscany Tumors Association, Home Care Service, Florence, Italy.