[1] La Maddalena Canc Ctr, Anesthesia & Intens Care Unit, Via san Lorenzo 312, I-90145 Palermo, Italy
[2] La Maddalena Canc Ctr, Pain Relief & Support Palliat Care Unit, Via san Lorenzo 312, I-90145 Palermo, Italy
[3] Univ Rome, Hosp St Andrea, Dept Oncol, Rome, Italy
[4] SAMO, Reg Palliat Care Program, Palermo, Italy
[5] Univ Palermo, Dept Sci Hlth Promot & Mother Child Care, Palermo, Italy