[1] Maastricht Univ, Med Ctr MUMC, Ctr Expertise Palliat Care, PO 5800, NL-6202 AZ Maastricht, Netherlands
[2] Maastricht Univ, Med Ctr MUMC, Dept Internal Med, Maastricht, Netherlands
[3] Ctr Expertise Chron Organ Failure, CIRO, Horn, Netherlands
[4] Maastricht Univ, Fac Hlth Med & Life Sci, CAPHRI Sch Publ Hlth & Primary Care, Dept Hlth Serv Res, Maastricht, Netherlands