[1] Ctr Expertise Chron Organ Failure, CIRO, Program Dev Ctr, NL-6085 NM Horn, Netherlands
[2] Maastricht Univ Med Ctr, Ctr Expertise Palliat Care, NL-6229 HX Maastricht, Netherlands
[3] Univ Kentucky, Sch Med, Kentucky Clin, Div Pulm Crit Care & Sleep Med,Dept Internal Med, Lexington, KY 40536 USA