[1] La Maddalena Canc Ctr, Pain Relief & Palliat Care Unit, I-90146 Palermo, Italy
[2] Univ Palermo, Anesthesiol Intens Care & Emergency & Palliat Med, Palermo, Italy
[3] SAMO Home Care Program, Palermo, Italy
[4] La Maddalena Canc Ctr, Pain Relief & Palliat Care, I-90146 Palermo, Italy
[5] Univ Palermo, Chair Anesthesiol Intens Care & Emergency, Palermo, Italy