[1] Univ Med Ctr Rotterdam, Dept Publ Hlth, Dr Molewaterpl 40, NL-3015 GD Rotterdam, Netherlands
[2] Leiden Univ, Ctr Expertise Palliat Care, Med Ctr, Leiden, Netherlands
[3] Elisabeth TweeSteden Hosp, Dept Palliat Care, Tilburg, Netherlands
[4] Gen Pract Bruggeman, Zwijndrecht, Netherlands
[5] Admiraal Ruyter Hosp, Dept Med Oncol, Goes, Netherlands
[6] Palliat Care Network Waardenland, Dordrecht, Netherlands
[7] SVRZ Ter Valcke, Goes, Netherlands
[8] Amphia Hosp, Dept Med Oncol, Breda, Netherlands
[9] Univ Amsterdam, Dept Med Oncol, Med Ctr, Amsterdam, Netherlands