[1] Univ Fed Sao Carlos, Med Dept, Sao Carlos, SP, Brazil
[2] Oncol Inst Ribeirao Preto, Oncoclin Grp, Palliat Care Serv, Ribeirao Preto, SP, Brazil
[3] Univ Estadual Campinas, Fac Med Sci, Dept Clin Med, Campinas, SP, Brazil
[4] Univ Fed Sao Joao del Rei, Med & Nursing Course, Sao Joao Del Rei, MG, Brazil
[5] Hosp Amor de Barretos, Dept Palliat Care, Barretos, SP, Brazil