[1] Erasmus MC, Dept Med Oncol, Canc Inst, Rotterdam, Netherlands
[2] Erasmus MC, Dept Publ Hlth, Canc Inst, Rotterdam, Netherlands
[3] Wayne State Univ, Coll Nursing, Detroit, MI USA
[4] Seirei Mikatahara Gen Hosp, Dept Palliat & Support Care, Hamamatsu, Japan
[5] Kobe Univ, Grad Sch Med, Dept Palliat Med, Kobe, Japan
[6] Erasmus MC, Dept Med Oncol, Canc Inst, Dr Molewaterpl 40, NL-3015 GD Rotterdam, Netherlands
[7] Erasmus MC, Dept Publ Hlth, Canc Inst, Dr Molewaterpl 40, NL-3015 GD Rotterdam, Netherlands